Library template update automation, and bug fixes (#44)

- Update Unit and E2E test pipelines to use YML templates and dynamic matrix generation.
- Add custom PS module for `Enterprise Scale Library Tools` to handle automated library template updates.
- Add script and GitHub Action to enable automated library template updates from [Azure/Enterprise-Scale](https://github.com/Azure/Enterprise-Scale) repository using a CI pipeline.
- Add offline ProviderApiVersions cache in `Enterprise Scale Library Tools` to negate the need for Azure credentials.
- Update Library Templates (automated) using new CI process.
- Manual remediations to updated library templates to ensure full compatibility with Terraform (needs to be fixed at source to prevent regression).
- Update Policy Assignments and archetypes to provide parity with [WingTip reference Enterprise-Scale foundations](https://github.com/Azure/Enterprise-Scale/blob/main/docs/reference/wingtip/README.md).
- Update Resource definitions in base module to use `name` field instead of `properties.displayName` to allow setting a more "human-friendly" displayName on policies and roles.
- Fix bug where duplicate roles are created at the same scope for policy assignments with managed identity.
- Add customizable delay between deployment of different resource types to reduce deployment errors due to caching and replication in the Azure API (Improvement to help Fix #37).
- Update `root_parent_id` validation regex to include support for additional supported characters (Fix #43).

Author: Kevin Rowlandson

.github/scripts/EnterpriseScaleLibraryTools/EnterpriseScaleLibraryTools.psd1

@@ -0,0 +1,134 @@
+#!/usr/bin/pwsh
+
+#
+# Module manifest for module 'EnterpriseScaleLibraryTools'
+#
+# Generated by: krowlandson
+#
+# Generated on: 26/02/2021
+#
+
+@{
+
+# Script module or binary module file associated with this manifest.
+# RootModule = ''
+
+# Version number of this module.
+ModuleVersion = '0.0.1'
+
+# Supported PSEditions
+CompatiblePSEditions = 'Core', 'Desktop'
+
+# ID used to uniquely identify this module
+GUID = 'f4d9375d-cb0c-4ade-b0dc-134a97444704'
+
+# Author of this module
+Author = 'krowlandson'
+
+# Company or vendor of this module
+CompanyName = 'krowlandson'
+
+# Copyright statement for this module
+Copyright = 'Copyright (c) 2020 Kevin Rowlandson. All rights reserved.'
+
+# Description of the functionality provided by this module
+Description = 'This module provides a set of custom classes and functions used for managing the template library in the Terraform Module for Cloud Adoption Framework Enterprise-scale.'
+
+# Minimum version of the PowerShell engine required by this module
+PowerShellVersion = '7.0'
+
+# Name of the PowerShell host required by this module
+# PowerShellHostName = ''
+
+# Minimum version of the PowerShell host required by this module
+# PowerShellHostVersion = ''
+
+# Minimum version of Microsoft .NET Framework required by this module. This prerequisite is valid for the PowerShell Desktop edition only.
+# DotNetFrameworkVersion = ''
+
+# Minimum version of the common language runtime (CLR) required by this module. This prerequisite is valid for the PowerShell Desktop edition only.
+# ClrVersion = ''
+
+# Processor architecture (None, X86, Amd64) required by this module
+# ProcessorArchitecture = ''
+
+# Modules that must be imported into the global environment prior to importing this module
+# RequiredModules = @()
+
+# Assemblies that must be loaded prior to importing this module
+# RequiredAssemblies = @()
+
+# Script files (.ps1) that are run in the caller's environment prior to importing this module.
+# ScriptsToProcess = @()
+
+# Type files (.ps1xml) to be loaded when importing this module
+# TypesToProcess = @()
+
+# Format files (.ps1xml) to be loaded when importing this module
+# FormatsToProcess = @()
+
+# Modules to import as nested modules of the module specified in RootModule/ModuleToProcess
+# NestedModules = @()
+
+# Functions to export from this module, for best performance, do not use wildcards and do not delete the entry, use an empty array if there are no functions to export.
+FunctionsToExport = @()
+
+# Cmdlets to export from this module, for best performance, do not use wildcards and do not delete the entry, use an empty array if there are no cmdlets to export.
+CmdletsToExport = @()
+
+# Variables to export from this module
+VariablesToExport = '*'
+
+# Aliases to export from this module, for best performance, do not use wildcards and do not delete the entry, use an empty array if there are no aliases to export.
+AliasesToExport = @()
+
+# DSC resources to export from this module
+# DscResourcesToExport = @()
+
+# List of all modules packaged with this module
+# ModuleList = @()
+
+# List of all files packaged with this module
+# FileList = @()
+
+# Private data to pass to the module specified in RootModule/ModuleToProcess. This may also contain a PSData hashtable with additional module metadata used by PowerShell.
+PrivateData = @{
+
+    PSData = @{
+
+        # Tags applied to this module. These help with module discovery in online galleries.
+        # Tags = @()
+
+        # A URL to the license for this module.
+        # LicenseUri = ''
+
+        # A URL to the main website for this project.
+        # ProjectUri = ''
+
+        # A URL to an icon representing this module.
+        # IconUri = ''
+
+        # ReleaseNotes of this module
+        # ReleaseNotes = ''
+
+        # Prerelease string of this module
+        # Prerelease = ''
+
+        # Flag to indicate whether the module requires explicit user acceptance for install/update/save
+        # RequireLicenseAcceptance = $false
+
+        # External dependent modules of this module
+        # ExternalModuleDependencies = @()
+
+    } # End of PSData hashtable
+
+} # End of PrivateData hashtable
+
+# HelpInfo URI of this module
+# HelpInfoURI = ''
+
+# Default prefix for commands exported from this module. Override the default prefix using Import-Module -Prefix.
+# DefaultCommandPrefix = ''
+
+}
+