[EPIC] Implement all TR1 state input/behaviour handlers

[stohrendorf]

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• [x] 14 - Grab to Fall
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• [x] 21 - Step Right
• [x] 22 - Step Left
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• [x] 33 - On Water Stop
• [x] 34 - On Water Forward
• [x] 35 - Underwater Diving
• [x] 36 - Pushable Push
• [x] 37 - Pushable Pull
• [x] 38 - Pushable Grab
• [x] 39 - Pick Up
• [x] 40 - Switch Down
• [x] 41 - Switch Up
• [x] 42 - Insert Key
• [x] 43 - Insert Puzzle
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• [x] 46 - Boulder Death
• [x] 47 - On Water Backward
• [x] 48 - On Water Left
• [x] 49 - On Water Right
• [x] 50 - Use Midas
• [x] 51 - Midas Death
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• [x] 55 - On Water Exit