Update documentation to include new API methods and events
Update documentation to include new API methods and events

New API methods:
- waitForPf
- takeItem
- getEquippedItems
- equipItem
- unequipItem
- sendAreaChatMessage
- sendPartyChatMessage
- sendVillageChatMessage
- sendPrivateChatMessage

New API events:
- onUserInput
- onChatMessage

b0r3d0m/scrifen