Move hiddenapi tools used by build/soong from frameworks/base

Also, creates a python_binary_host module for generate_hiddenapi_lists
and uses that when constructing the build rule rather than using the
file directly.

Bug: 177317659
Test: m droid
      Verified that hiddenapi files (both aggregated ones and for the
      individual modules) are not affected by this change.
Change-Id: Ia11bb203ce5a74740d35f1b7e86716e15aad336e