Camera: Extend HEIC output support

- Enable HEIC composite streams on devices with SW
  HEVC codecs and no dedicated HEIC stream combination
  support.
- Switch the default HEVC YUV420_888 input format to P010.
- Tonemap the P010 camera output to an SDR base image.
- Generate an HDR gainmap.
- Write the the HDR gainmap metadata in the final HEIF
  container.
- Add a separate gainmap HEVC encoding pipeline
- Stitch final HEIC including the gainmap and metadata
  according to ISO/IEC 23008-12:2024
- Introduce public APIs
- Wire up public APIs with the Heic composite functionality

TODO:
- Enable support for native/Hal HEIF UltraHDR
- Code cleanup and polish

Flag: com.android.internal.camera.flags.camera_heif_gainmap
Bug: 362608343
Test: test -c -d cts/tests/camera/src/android/hardware/camera2/cts/ImageReaderTest.java#testHeicUltraHdr

Change-Id: I09f0d55a5a11699871801583be0bce5c36cacc7a