Parse tags attached to version blocks

header-abi-linker follows the rules in
build/soong/docs/map_files.md to parse version scripts.

Test: ANDROID_BUILD_TOP=`realpath .` \
      PATH=$PATH:`realpath out/soong/dist/bin` \
      development/vndk/tools/header-checker/tests/test.py
Test: LD_LIBRARY_PATH=out/soong/dist/lib64 \
      out/soong/host/linux-x86/nativetest64/header-checker-unittests/header-checker-unittests
Bug: 298626434
Change-Id: I7305a6a299f4878dfb9529fd5c6040c3c1d11f8f
5 files changed