We currently have tables_clients.hpp (plural). Changing this after the GA would be considered breaking, so we'd want to fix it before #6116

We have not made client plural in other SDKs (blob_client.hpp, key_client.hpp, etc.).

The type name is TableClient.

The file name should match, either:
table_client.hpp
OR if we want to align with the package/namespace name
tables_client.hpp

The same would apply to the source/cpp file, but that's less important since modifying that isn't considered breaking.
https://github.com/Azure/azure-sdk-for-cpp/blob/0e699e4c7a39078daba7d902f9ee9b5b98b1b5cf/sdk/tables/azure-data-tables/src/tables_clients.cpp

cc @RickWinter