New Resource azurerm_dev_test_lab_schedule - Fix for issue 2334 (#3554)

This pull request is to fix issue #2334, It has changes to add new resource provider **azurerm_dev_test_lab_schedule**.

**Additional Points**
* Resource provider has been created based on [microsoft.devtestlab/2016-05-15/schedules](https://docs.microsoft.com/en-us/azure/templates/microsoft.devtestlab/2016-05-15/schedules)

(fixes #2334)

azurerm/internal/services/devtestlabs/client.go

@@ -7,6 +7,7 @@ import (
 
 type Client struct {
 	LabsClient            dtl.LabsClient
+	LabSchedulesClient    dtl.SchedulesClient
 	PoliciesClient        dtl.PoliciesClient
 	VirtualMachinesClient dtl.VirtualMachinesClient
 	VirtualNetworksClient dtl.VirtualNetworksClient
@@ -27,5 +28,8 @@ func BuildClient(o *common.ClientOptions) *Client {
 	c.VirtualNetworksClient = dtl.NewVirtualNetworksClientWithBaseURI(o.ResourceManagerEndpoint, o.SubscriptionId)
 	o.ConfigureClient(&c.VirtualNetworksClient.Client, o.ResourceManagerAuthorizer)
 
+	c.LabSchedulesClient = dtl.NewSchedulesClientWithBaseURI(o.ResourceManagerEndpoint, o.SubscriptionId)
+	o.ConfigureClient(&c.LabSchedulesClient.Client, o.ResourceManagerAuthorizer)
+
 	return &c
 }

azurerm/provider.go

@@ -266,6 +266,7 @@ func Provider() terraform.ResourceProvider {
 			"azurerm_databricks_workspace":                               resourceArmDatabricksWorkspace(),
 			"azurerm_ddos_protection_plan":                               resourceArmDDoSProtectionPlan(),
 			"azurerm_dev_test_lab":                                       resourceArmDevTestLab(),
+			"azurerm_dev_test_schedule":                                  resourceArmDevTestLabSchedules(),
 			"azurerm_dev_test_linux_virtual_machine":                     resourceArmDevTestLinuxVirtualMachine(),
 			"azurerm_dev_test_policy":                                    resourceArmDevTestPolicy(),
 			"azurerm_dev_test_virtual_network":                           resourceArmDevTestVirtualNetwork(),