[PATCH v15 0/3] MR7542: ws2_32: Implement WSALookupService for Bluetooth device discovery.

[Vibhav Pant (＠vibhavp)]

This MR adds an initial implementation of the winsock `WSALookupsService*` methods for performing Bluetooth device discovery (`LUP_CONTAINERS`).

Pending !7472, the code will also eventually support performing device inquiry scans.

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  v15: ws2_32: Implement WSALookupServiceNext for Bluetooth device discovery.
       ws2_32: Implement WSALookupServiceBegin for Bluetooth device discovery.
       ws2_32/tests: Add tests for the Bluetooth namespace (NS_BTH) in WSALookupServiceBegin/Next.

https://gitlab.winehq.org/wine/wine/-/merge_requests/7542