To enhance the functional features of html5 player (h5player) supporting all websites，shortcuts similar to Potplayer - Adjustment of 亮度(brightness)，飽和度(saturate)，對比度(contrast)，速度(playback speed); frame , hue , blur
fork from https://greatest.deepsurf.us/es/scripts/381682-html5播放器增强插件-修订版/code
Shortcut Keys for video control:
亮度(brightness)[Key: E/W]
飽和度(saturate)[Key: U/Y]
對比度(contrast)[Key: T/R]
速度(playback speed)[Key: Z/X/C]
frame [Key: F/D]
hue [Key: O/I]
blur [Key: K/J];
RESET [Key:Q]
ROTATION [Key:S]
fullscreen [Key:Enter]
changelogs
2.5.3 - first version
2.5.5 - update code for the original fullscreen
