Move legacy bindgen files to a separate directory

Author: kateinoigakukun

packages/npm-packages/ruby-wasm-wasi/src/bindgen/intrinsics.js renamed to packages/npm-packages/ruby-wasm-wasi/src/bindgen/legacy/intrinsics.js

@@ -1,10 +1,10 @@
-import * as RbAbi from "./bindgen/rb-abi-guest.js";
+import * as RbAbi from "./bindgen/legacy/rb-abi-guest.js";
 import {
   RbJsAbiHost,
   addRbJsAbiHostToImports,
   JsAbiResult,
   JsAbiValue,
-} from "./bindgen/rb-js-abi-host.js";
+} from "./bindgen/legacy/rb-js-abi-host.js";
 
 /**
  * A Ruby VM instance

packages/npm-packages/ruby-wasm-wasi/src/bindgen/rb-abi-guest.d.ts renamed to packages/npm-packages/ruby-wasm-wasi/src/bindgen/legacy/rb-abi-guest.d.ts

@@ -10,6 +10,6 @@
     "moduleResolution": "node",
     "resolveJsonModule": true
   },
-  "include": ["src/**/*.ts", "./src/bindgen/*"],
+  "include": ["src/**/*.ts", "./src/bindgen/**/*"],
   "exclude": ["node_modules", "dist"]
 }