Migrate frameworks/base/apex/extservices to packages/Modules/ExtServices/apex

BUG: 167960011
Test: TH
Merged-In: I58eecad905cb6b79eddfeb40ecf293489e863812
Change-Id: I58eecad905cb6b79eddfeb40ecf293489e863812
(cherry picked from commit 199481e24459d17d912558439d969c011c138db5)
8 files changed