Deprecate the Core helper build_multi_table_dictionary_domain

[popescu-v]

Keep the same functionality as a "private" function. Deprecate the usage of the public function. It could be dropped in V11.

Also add documentation note to the public function, as to its intent and purpose.

closes #386

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[tramora]

Indeed after reading the test function test_build_multi_table_dictionary_domain_deprecation and the added docstring we can understand that the tested function creates a root table referencing the initial table