Add parser for traceview

This CL creates a new library perflib that is intended to contain
memory and performance analyzers that might be shared across
Eclipse and IntelliJ.

The initial commit contains a parser for dalvik trace. The parser
can currently parse through the dalvik method trace file and
reconstruct call stacks.

Change-Id: I02fd961bb2c02a705f149a713498c8365d78ffde
25 files changed