c2516d9

add recording support

in LR2SceneSwitcher.ini add following line to enable :
recordType = 1 (for Recording, 2 for ReplayBuffer)
recordShortcutKey = 0x75 (default is F6, please refer this link for keybind change)
recordStartDelay = 0 (in milliseconds)
recordStopDelay = 0 (in milliseconds)

Recording will stop when you get back to select music scene (in this case recording won't be save on ReplayBuffer mode) or press F6 on result scene.

saved recording will be renamed with following format :
(songname) - [(lamp) - (grade) - (exscore)]