feat: add molang package

1. upgrade bukkit chat
2. fix config update error

Signed-off-by: MiaoWoo <admin@yumc.pw>

packages/molang/src/parser/expressions/arrayAccess.ts

@@ -0,0 +1,32 @@
+import { Expression, IExpression } from '../expression'
+
+export class ArrayAccessExpression extends Expression {
+	type = 'ArrayAccessExpression'
+	constructor(protected name: IExpression, protected lookup: IExpression) {
+		super()
+	}
+
+	get allExpressions() {
+		return [this.name, this.lookup]
+	}
+	setExpressionAt(index: number, expr: IExpression) {
+		if (index === 0) this.name = expr
+		else if (index === 1) this.lookup = expr
+	}
+
+	isStatic() {
+		return false
+	}
+
+	setPointer(value: unknown) {
+		;(<any>this.name.eval())[<number>this.lookup.eval()] = value
+	}
+
+	eval() {
+		return (<any>this.name.eval())[<number>this.lookup.eval()]
+	}
+
+	toString() {
+		return `${this.name.toString()}[${this.lookup.toString()}]`
+	}
+}