bp2build: refactor/standardize cc_* bp2build converters

This CL refactors the cc* bp2build converters to use the common
attribute extractors in cc/bp2build.go.

This also adds include_build_directory to be handled by the compiler
attr extractor to generate recursive headers as inputs.

This also turns include_dirs and local_include_dirs into the
execroot-relative -I flags.

e.g. if a module in  bionic/libc has "private" in local_include_dirs,
the "-Ibionic/libc/private" copt is generated for it.

Fixes: 185139955

Test: TH
Test: Forrest for mixed_clean-droid
Change-Id: Ib67056482227e62068fbbea0455035bdf5d56319