type of global function we can use inside of the ExtensionOf function D365Fno

 When extending a class, use classStr(<NameofBaseClass>)

When extending a table, use tableStr(<NameOfBaseTable>)

In the case of a form, use formStr(<NameOfBaseForm>)

When extending a form Datasource use formDataSourceStr(<NameOfBaseForm>,<NameOfDataSource>)

When extending a form Data field, use formDataFieldStr(<NameOfBaseForm>,<NameOfDataSource>,<NameOfField>)

For a form control, use formControlStr(<NameOfBaseForm>,<NameOfControl>)

When extending a data entity, use tableStr(<NameOfBaseDataEntity>)