Reduce PIC instrumentation self-noise

[8damon]

Summary

• stops PIC correlation from learning or promoting Blackbird-owned instrumentation events
• checks the full mapped ETW event for owned ranges before emitting self-instrumentation telemetry
• drops low-value Blackbird-owned direct-syscall/self-noise instead of feeding it back into the operator stream
• carries the public IPC family constant needed for current Community .NET builds from stable

Refs #27
Refs #28

Validation

• git diff --check
• denied-string scan for Enterprise-only terms in staged additions
• dotnet build VCXProj/BlackbirdInterface.csproj -c Debug
• dotnet build VCXProj/BlackbirdRunner.csproj -c Debug
• MSBuild VCXProj/BlackbirdSensorCore.vcxproj /p:Configuration=Debug /p:Platform=x64 /m:1

Note

BlackbirdController.vcxproj was also attempted, but this machine's VS Insiders install currently mixes MSVC 14.44 cl.exe with 14.51 STL headers and fails before project code with STL1001: Unexpected compiler version, expected MSVC Compiler 19.50 or newer.