Convert IpSecService resources to use refcounting

This is part 2 of 2 of the refcounting refactor for IpSecService
resources.

Switched ManagedResources to use RefcountedResource structure for
managing reference counts and eventual cleanup. Further, resource arrays
and quota management have been aggregated into a UserRecord for better
isolation. UID access checking has been similarly moved into the
UserRecordTracker, and resourceId checking has been rolled into
RefcountedResourceArray's accessor methods.

Bug: 63409385
Test: CTS, all unit tests run on aosp_marlin-eng, new tests added
Change-Id: Iee52dd1c9d2583bb6bfaf65be87569e9d50a5b63