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/postfix.ts

@@ -0,0 +1,32 @@
+import { TTokenType } from '../../tokenizer/token'
+import { Expression, IExpression } from '../expression'
+
+export class PostfixExpression extends Expression {
+	type = 'PostfixExpression'
+
+	constructor(
+		protected expression: IExpression,
+		protected tokenType: TTokenType
+	) {
+		super()
+	}
+
+	get allExpressions() {
+		return [this.expression]
+	}
+	setExpressionAt(_: number, expr: IExpression) {
+		this.expression = expr
+	}
+
+	isStatic() {
+		return this.expression.isStatic()
+	}
+
+	eval() {
+		switch (this.tokenType) {
+			case 'X': {
+				// DO SOMETHING
+			}
+		}
+	}
+}