Moved headers from include/libutils and include/libsysutils to
libutils/include and libsysutils/include respectively, so they can be
exported via these libs. They needed to be moved since Soong does
not allow export from external folder.
Added symlink from old locations. They are needed since Soong
includes system/core/include by default. Once all modules are
cleaned up to explicitly add the required libs, the symlinks will be
removed.
Moved headers of libutils to libutils_headers. They should be used
by modules for header-only inlines. Added libutils_headers as
dependency of libutils.
Split of C++ headers into those that have no dependency and those that
have dependency on libutils.so will be handled in a later CL.
Test: Add above libs to shared lib of local module
Change-Id: I122db72056b26b1f39bad1d9a0c2a1c5efda3550
AndroidDefs.h - C/C++ enums and types
Mutex.h - Mutex class declaration
Condition.h - Condition class declaration
RWLock.h - RWLock class declaration
Thread.h - Thread class declaration
AndroidThreads.h - low-level thread creation functions
threads.h - includes all the above for backward source compatibility
Change-Id: Ia2f80c175333b59a41d1720985810bb2346e94cb
Note: implementations are still in Threads.cpp
