Record foreign dex files loaded by the app in the profile

A foreign dex file is a file which is not owned by the app
(it's not part of its code paths or its private data directory).

When such a dex file is loaded by the app, the runtime will record
a marker in a dedicated profile folder (foreing_dex_profile_path).
The marker is just a file named after the canonical location of the
dex file where '/' is replaced by '@'.

The markers will be used by the system server system server to
decide if the apk should be fully or profile guide compiled.

Bug: 27334750
Bug: 26080105

(cherry picked from commit 86a9ebe4)

Change-Id: I8be1fd4d854fa1e23c3c1054c9c083ad7b27317b