Update changelog and version number

Author: myrsloik

doc/ffms2-changelog.md

@@ -1,6 +1,7 @@
 # FFmpegSource2 Changelog
-- 2.xxx
-  - Fixed all issues with FFmpeg 6.0 which is now the minimum requirement
+- 5.0
+  - Fixed all issues with FFmpeg 6.1 which is now the minimum requirement
+  - Fixed av1 decoding
   - Added HDR10+ and DolbyVision metadata
   - Fixed audio decoding that could otherwise get stuck in an infinite loop on certain files
   - Fixed framerate in Avisynth when using VFR=>CFR mode

include/ffms.h

@@ -22,7 +22,7 @@
 #define FFMS_H
 
 // Version format: major - minor - micro - bump
-#define FFMS_VERSION ((3 << 24) | (1 << 16) | (1 << 8) | 0)
+#define FFMS_VERSION ((5 << 24) | (0 << 16) | (0 << 8) | 0)
 
 #include <stdint.h>
 #include <stddef.h>