feat: Universal Package (#578)

* feat: 统一包支持

* feat: Universal

src/universal/napcat.ts

@@ -0,0 +1,7 @@
+import { NCoreInitShell } from "@/shell/base";
+
+export * from "@/framework/napcat";
+export * from "@/shell/base";
+if ((global as any).LiteLoader == undefined) {
+    NCoreInitShell();
+}