simpleperf: report symbols of native libraries in apk file.
Changes included:
1. provide interface in read_apk.h to read build id and symbols.
2. report symbols of native libraries in apk file.
3. refactor code in read_elf.cpp and read_apk.cpp.
4. add verbose log.
5. add -o report_file_name option for report command.
6. add corresponding unit tests.
Bug: 26962895
Change-Id: I0d5398996e0c29dba4a6f5226692b758ca096bbd
(cherry picked from commit b1a885b014540a2f7798b5a35ea0f0ec150d93ee)
27 files changed