fix: adding types for the API

Author: aminya

lib/as-bind.d.ts

@@ -0,0 +1,13 @@
+import { instantiate, instantiateSync } from "@assemblyscript/loader";
+
+export interface AsBind {
+  // General asbind versionn
+  version: number;
+
+  // Our APIs
+  instantiate: typeof instantiate;
+
+  instantiateSync: typeof instantiateSync;
+}
+
+export type AsBindLib = AsBind;