-- v2: d3dx10: Exclusively use shared code for parsing all files in get_image_info(). d3dx10: Add support for d3dx10+ image file formats in shared code. d3dx10: Exclusively use shared code for parsing DDS files in get_image_info(). d3dx10: Add support for DXGI formats in d3dx_helpers. d3dx10: Only validate header size for DDS files in d3dx10. d3dx10: Add support for parsing DXT10 DDS headers to shared code. d3dx10/tests: Add more DDS file header handling tests. d3dx10/tests: Add more DDS file DXGI format mapping tests.