Management Group scopeTreeInfo type property mistmatch on Assignment notScope evaluation

[jacerm]

While executing Build-AzPoliciesInitiativesAssignmentsPlan.ps1, I find that the scopeTreeInfo object contains a type property prepended with /providers/, while the Get-NotScope helper function expects a string that evaluates with exactly Microsoft.Management/managementGroups.

This causes the Build-AzPoliciesInitiativesAssignmentsPlan.ps1 to fail with the error output Traversal of scopeTree to find notScopes in scope '$scope' yielded an unknown type '$($child.type)' name='$($child.name)'