[Common] [Common]::CCDB:: add RCTSelectionFlags.h as header only library

[adriansev]

to be added into $O2PHYSICS_ROOT/include (and solve the compilation of O2OpenAccess application)

[github-actions]

O2 linter results: ❌ 0 errors, ⚠️ 0 warnings, 🔕 0 disabled

[adriansev]

o2/macOS died fast with:

dyld[40511]: Library not loaded: /usr/local/opt/abseil/lib/libabsl_die_if_null.2308.0.0.dylib
  Referenced from: <1A22517A-E81C-34E9-9A36-2364367B429B> /System/Volumes/Data/build/alice-ci-workdir/o2physics/sw/osx_x86-64/protobuf/v29.3-local1/bin/protoc-29.3.0
  Reason: tried: '/usr/local/opt/abseil/lib/libabsl_die_if_null.2308.0.0.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/usr/local/opt/abseil/lib/libabsl_die_if_null.2308.0.0.dylib' (no such file), '/usr/local/opt/abseil/lib/libabsl_die_if_null.2308.0.0.dylib' (no such file), '/usr/local/Cellar/abseil/20240722.1/lib/libabsl_die_if_null.2308.0.0.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/usr/local/Cellar/abseil/20240722.1/lib/libabsl_die_if_null.2308.0.0.dylib' (no such file), '/usr/local/Cellar/abseil/20240722.1/lib/libabsl_die_if_null.2308.0.0.dylib' (no such file)
/bin/sh: line 1: 40511 Abort trap: 6           /System/Volumes/Data/build/alice-ci-workdir/o2physics/sw/osx_x86-64/protobuf/v29.3-local1/bin/protoc /System/Volumes/Data/build/alice-ci-workdir/o2physics/sw/BUILD/d82bd5477aa137c5b465c4190b0e45dd73b4c8d7/onnx/onnx/onnx-ml.proto -I /System/Volumes/Data/build/alice-ci-workdir/o2physics/sw/BUILD/d82bd5477aa137c5b465c4190b0e45dd73b4c8d7/onnx --cpp_out dllexport_decl=ONNX_API:/System/Volumes/Data/build/alice-ci-workdir/o2physics/sw/BUILD/d82bd5477aa137c5b465c4190b0e45dd73b4c8d7/onnx