graphics: rewrite libgralloc1-adapter

Rewrite libgralloc1-adapter to be based on Gralloc1On0Adapter.
Previously, the adapter targeted maximum portability and maximum
performance.  The rewritten adapter targets ease of use instead.

This also fixes a bug in the adapter's GRALLOC1_FUNCTION_RELEASE.  The
function does not imply native_handle_close/native_handle_delete.  As a
result, IMapper and IComposer are also fixed to close/delete handles.

Test: builds and boots
Change-Id: I5c071453dc950583087ae07967bca2c22866c538