Log Message:
Update to 2.3.0

Changelog:
version 2.3.0 - 30.Sep.2018
* Bump VA-API version to 1.3.0 and libva to 2.3.0
* Add max frame size parameters for multiple pass case in legacy mode
* Add new BRC mode AVBR
* Add new interface for High Dynamic Range tone mapping
* Add missing enum to string conversions
* Add hevc subsets parameters structure
* Add Customized Noise Reduction (HVS) interfaces
* Add new BRC mode definition QVBR
* Add more complete colour properties for use in VPP

Version 2.2.0 - DD.July.2018
* Bump VA-API version to 1.2.0 and libva to 2.2.0
* Add support for hevc range extension decoding
* Add support for fast intra prediction in HEVC FEI
* Add 10/12-bit YUV render target formats
* Add fourcc code for Y210/Y216/Y410/Y416/RGB565/BGR565
* Add VA_STATUS_ERROR_NOT_ENOUGH_BUFFER
* Add VA_SURFACE_ATTRIB_USAGE_HINT_EXPORT
* Improve documentation

Version 2.1.0 - 12.Feb.2018
* Bump VA-API version to 1.1.0 and libva to 2.1.0
* Add API for multi-frame processing
* Add entrypoint VAEntrypointStats for Statistics
* Add data structures for HEVC FEI support
* Add new attributes for decoding/encoding/video processing
* Add new VPP filter for Total Color Correction
* Add blending interface in VPP
* Add rotation interface in VPP
* Add mirroring interface in VPP
* Add Chroma siting flags in VPP
* Add new color standard definitions
* Add new interface for exporting surface
* Add message callbacks for drivers to use

Version 2.0.0 - 21.Oct.2017
* Bump VA-API version to 1.0.0 and libva to 2.0.0
* Add new API for H264 FEI support
* Add definition of VA_FOURCC_I420
* Add functions for converting common enums to strings
* Deprecate H.264 baseline profile and FMO support
* Deprecate packed misc packed header flag
* Delete libva-tpi and libva-egl backends
* Refine VASliceParameterBufferHEVC, VAEncMiscParameterBuffer
* Fix errors in VAConfigAttribValEncROI, VAEncMacroblockParameterBufferH264
* Fix race condition in wayland support
* Rename vaMessageCallback to VAMessageCallback
* Make logging callbacks library-safe