Add interface for controlling access points

[abeltrano]

Type

• Bug fix
• Feature addition
• Feature update
• Documentation
• Build Infrastructure

Side Effects

• Breaking change
• Non-functional change

Goals

• Allow more control over how access points are created and how they are used.

Technical Details

• Add helper Nl80211ProtocolState to obtain and store state related to the nl80211 protocol.
• Add Nl80211MulticastGroup enumeration for referencing nl80211 multicast groups easier.
• Add unit tests for nl80211 helper code.
• Add IAccessPointController interface for controlling access points.
• Implement shared IAccessPointController behavior in AccessPointController.
• Partially implement NetRemoteService::WifiEnumerateAccessPoints API to allow clients to invoke it and obtain access point identifiers in the result, using AccessPointManager.
• Fix numbering in protobuf Dot11CipherAlgorithm entries.

Test Results

• All unit tests pass.

Reviewer Focus

• None

Future Work

• Extend IAccessPointController with necessary operations.
• Use Nl80211ProtocolState data in AccessPointDiscoveryAgentOperationsNetlink impl.

Checklist

• Build target all compiles cleanly.
• clang-format and clang-tidy deltas produced no new output.
• Newly added functions include doxygen-style comment block.