EOBot: Add support for objects in script files. Define $account, $character, and $mapstate built-in variables.

[ethanmoffat]

Objects work sort of like arrays. Each one is a property bag, properties are assigned dynamically and created if they don't exist. Properties can be nested objects or arrays. Arrays may contain objects.

$obj = object()
$obj.$prop1 = "My property"
print ($obj.$prop1)

Built-in objects $account, $character, and $mapstate evaluate their properties when they are accessed, since the data structures are immutable and instances can change.