Migrate from rules_nodejs to rules_js/rules_ts (#7923)

* Start using pnpm

* Add @npm

* get more stuff set up

* Get the analysis phase passing.

* Get esbuild working?

* Get it compiling?

    $ bazel build //tests/ts/...

* Try to get the test working

* test is passing

* Get the other tests working

* clarify comment

* clean up a bit

* Try to add another test

* Add another test

* clean up more

* remove unused reference

* Add e2e test

* Get more of the test working

* add lock file

* Get test working on its own

* Get e2e test passing

* fix infinite recursion

* Add comments

* clean up some more

* clean up more again

* Source typescript version from package.json

* run buildifier

* lint

* Fix unset `extra_env`

* Incorporate feedback

* run buildifier

---------

Co-authored-by: Derek Bailey <derekbailey@google.com>

tests/ts/test_dir/import_test.js

@@ -0,0 +1,31 @@
+import assert from 'assert'
+import * as flatbuffers from 'flatbuffers'
+
+import typescript_include from './typescript_include_generated.cjs'
+
+const foobar = typescript_include.foobar;
+
+function main() {
+  // Validate the enums.
+  assert.strictEqual(foobar.Abc.a, 0);
+  assert.strictEqual(foobar.class_.arguments_, 0);
+
+  // Validate building a table.
+  var fbb = new flatbuffers.Builder(1);
+  var name = fbb.createString("Foo Bar");
+
+  foobar.Tab.startTab(fbb);
+  foobar.Tab.addAbc(fbb, foobar.Abc.a);
+  foobar.Tab.addArg(fbb, foobar.class_.arguments_);
+  foobar.Tab.addName(fbb, name);
+  var tab = foobar.Tab.endTab(fbb);
+
+  fbb.finish(tab);
+
+  // Call as a sanity check. Would be better to validate actual output here.
+  fbb.asUint8Array();
+
+  console.log('FlatBuffers Bazel Import test: completed successfully');
+}
+
+main();