[sanitizer-coverage] Add interface for coverage symbolization

[sanitizer-coverage] Add interface for coverage symbolization

libsanitizer/
	* sanitizer_common/sanitizer_stacktrace_libcdep.cc:
	(__sanitizer_symbolize_pc): New function.
	(__sanitizer_get_module_and_offset_for_pc): New function.
	* include/sanitizer/common_interface_defs.h
	(__sanitizer_symbolize_pc): Likewise.
	(__sanitizer_get_module_and_offset_for_pc): Likewise.
	* sanitizer_common/sanitizer_interface_internal.h
	(__sanitizer_get_module_and_offset_for_pc): Likewise.

Partially backported from LLVM mainline r281886, r279780, r288711,
r281668, r281015, r289498. Also, fixed argument names in declarations of
__sanitizer_get_module_and_offset_for_pc().

Change-Id: I3722eb8d3e1cd07b6b862f1a4421517b32b22c5a
Signed-off-by: Dmitriy Nikiforov <d.nikiforov@partner.samsung.com>