Frameworks/base: Add compiler stats to Package Manager

Add a simple class for storing compiler statistics. Capture compile
times for code paths from a package.

Bug: 29223204
Change-Id: I1b066de6a83a739470a42480eee0bfef88423eea
(cherry picked from commit 37e5fdc6b4963f3533caecdd92b129f79da69dd8)
6 files changed