Feature request: Add lamps for extended skin

[Vad1mCSO2]

From beatoraja used new lamps (ASSIST EASY, EX-HARD, PERFECT and MAX) usage #SRC_BAR_LAMP, #SRC_BAR_MY_LAMP and #SRC_BAR_RIVAL_LAMP Index:

0 - NO PLAY
1 - FAILED
2 - EASY (if not defined ASSIST EASY [9] to define as ASSIST EASY/EASY)
3 - NORMAL
4 - HARD (if not defined EX-HARD [5] to define as HARD/EX-HARD)
5 - EX-HARD
6 - FULL COMBO (if not defined PERFECT [7] or MAX [8] to define as FULLCOMBO/PERFECT(if not defined)/MAX(if not defined)
7 - PERFECT
8 - MAX
9 - ASSIST EASY