Support for `unifiedRoleAssignment` for different RBAC providers

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Is your feature request related to a problem? Please describe.
I'm trying to add a new resource unifiedRoleAssignment, but there are several issues.

1. Resource is under more URIs
   The resource unifiedRoleAssignment represents a role assignment, but the type is returned by more RBAC providers.
   All these endpoints return unifiedRoleAssignment:
   /roleManagement/directory/roleAssignments
/roleManagement/entitlementManagement/roleAssignments
/roleManagement/exchange/roleAssignments - beta only

Now, it's possible to specify only one RootUri.

  - Name: microsoft.graph.unifiedRoleAssignment
    RootUri: /roleManagement/directory/roleAssignments
    AvailableProperty:
      - appScopeId
      - directoryScopeId
      - principalId
      - roleDefinitionId
    RequiredOnWrite:
      - appScopeId
      - directoryScopeId
      - principalId
      - roleDefinitionId

3. Wrong path generated
   Generated path for

  - Name: microsoft.graph.unifiedRoleAssignment
    RootUri: /roleManagement/directory/roleAssignments
    AvailableProperty:
      - appScopeId
      - directoryScopeId
      - principalId
      - roleDefinitionId
    RequiredOnWrite:
      - appScopeId
      - directoryScopeId
      - principalId
      - roleDefinitionId

Generated path is /{rootScope}/providers/Microsoft.Graph/directory/{directoryId}/roleAssignments/{unifiedRoleAssignmentId} which seems to me wrong. It should be /{rootScope}/providers/Microsoft.Graph/roleManagement/directory/roleAssignments/{unifiedRoleAssignmentId}/

Describe the solution you'd like
Maybe add new property EntityType. Config.yml can contain the same EntityType but with different combination of Name and RootUri

  - Name: microsoft.graph.entraRoleAssignment
    EntityType: microsoft.graph.unifiedRoleAssignment
    RootUri: /roleManagement/directory/roleAssignments
  - Name: microsoft.graph.exchangeRoleAssignment
    EntityType: microsoft.graph.unifiedRoleAssignment
    RootUri: /roleManagement/exchange/roleAssignments

Additional context
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