Enable ForceCreateDatabase for SqlServer

[Zeegaan]

Fixes #14110

Notes

• Enable ForceCreateDatabase for SqlServerDatabaseProviderMetadata

How to test

• Set your connectionString in your AppSettings.json, I used my localDb like so:
  (If you do not have a SQL server running, create one first)
  Note here that although your server should be running, whatever database you set should not, so here my test database does not exist

  "ConnectionStrings": {
    "umbracoDbDSN": "Server=(localdb)\\MSSQLLocalDB;Database=test;Integrated Security=true",
    "umbracoDbDSN_ProviderName": "Microsoft.Data.SqlClient"
  },

• Enable UnattendedInstall by setting in your AppSettings.Json, in the Umbraco/CMS section

      "Unattended": {
        "InstallUnattended": true,
        "UnattendedUserName": "Nikolaj Geisle",
        "UnattendedUserEmail": "{YOUR EMAIL HERE}",
        "UnattendedUserPassword": "{YOUR PASSWORD HERE}"
      },

• Run Umbraco and assert that the database gets created, and thus umbraco gets installed and runs 👍

[nikolajlauridsen]

LGTM

[ronaldbarendse]

We should revert this PR as soon as possible, because this change will now create a new SQL Server database even when InstallMissingDatabase is not enabled, see: https://docs.umbraco.com/umbraco-cms/fundamentals/setup/install/unattended-install#configure-your-database.

An incorrectly configured SQL Server connection string should throw a BootFailedException (by default) and not try to create a new database, install an empty Umbraco installation and thereby 'successfully' boot (but without the contents you expected):

Umbraco-CMS/src/Umbraco.Infrastructure/Runtime/RuntimeState.cs

Lines 218 to 229 in 0c595cc

	if (_globalSettings.Value.InstallMissingDatabase || _databaseProviderMetadata.CanForceCreateDatabase(_databaseFactory))
	{
	// ok to install on a configured but missing database
	Level = RuntimeLevel.Install;
	Reason = RuntimeLevelReason.InstallMissingDatabase;
	return;
	}
	// else it is bad enough that we want to throw
	Reason = RuntimeLevelReason.BootFailedCannotConnectToDatabase;
	BootFailedException = new BootFailedException("A connection string is configured but Umbraco could not connect to the database.");
	throw BootFailedException;

The ForceCreateDatabase is enabled for SQL Server LocalDB and SQLite, because those should be used for local development and we want to make that a seamless experience. For production sites, we expect the connection string to be configured to an already existing database and quickly fail otherwise (or explicitly configure InstallMissingDatabase).