Migrate to packages/modules/StatsD/lib/*

BUG: 167962588
Test: TH
Merged-In: I22db7e344a9a96bfc16e009624b4896625306e83
Change-Id: I0c4e4aaece738259bafe57d420dfd1c941f834de
Exempt-From-Owner-Approval: Code Migration / Cleanup
22 files changed