stagefright:ColorConverter: add support for BT.601/709/2020 limited and full range

Previously, 10-bit sources supported only BT.709 and BT.2020 limited range, and 8-bit
sources only BT.601 limited range.

- Added matrix coefficients for all supported color spaces.
- Combined the various vendor YUV420Planar conversions into a base routine.
- Fix BT709 support for libyuv (current libyuv only supports limited range)
- Added fall-back from libyuv for unsupported color spaces (newer libyuv does support
  all of our color spaces, but we cannot use these yet.)
- Added rounding.
- Reduce the divisor of the 10-bit transform matrix to match the other 8-bit
  matrices. The actual matrix was purely divisable so no actual precision is lost.

Bug: 206040283
Test: manual Photos && atest MediaMetadataRetrieverTest.java
Change-Id: I607c9a7e903378a81e4784cc222f7e76bf836d41