WIP Update Permissions API

[kt3k]

This PR tries to update the permissions API, following the direction suggested in #2767.

Now Deno.permissions has 3 methods query, request, and revoke:

For example, query works like the below:

// test.js
(async () => {
  console.log(await Deno.permissions.query({ name: "net" }));
})();

$ ./target/debug/deno test.js
PermissionStatus { _desc: { name: "net" }, state: "prompt" }

Done:

• Removed allow once deny once options in prompt because they don't make sense with the new API.

There are several remaining works:

• correct whitelist handling for read, write, and net
• update the usages of permissions module in rust.
• update lib.deno_runtime.d.ts
• update documents

---

closes #2767

[ry]

@kt3k Thanks for looking into this. I think it's very important to adjust our permissions API before 1.0.

Maybe we should start with a smaller change, which is to remove the prompt completely and simply fail when permissions are not available. (Maybe with something like "run again with the --allow-net flag")

[kt3k]

@ry The change required was bigger than I expected. OK. I'll try that part first 👍