[ray dashboard] Add resource utilization columns to actors

[nikitavemuri]

Why are these changes needed?

• Add resource utilization columns (CPU, Memory, GPU, GRAM) to actors table page. This is similar to the corresponding columns on the cluster table page and allows users to better track resource utilization of actors. I will add column sort as a future PR.
• Actor table in node detail page will also contain these additional columns
• Update /logical/actors API to return necessary resource utilization values. These values are already returned by /logical/actors/{actor_id}.
  • Note about performance: /logical/actors/{actor_id} already fetches data for all actors and then filters by actor id, so with this change the performance of /logical/actors shouldn't be worse than /logical/actors/{actor_id}

Related issue number

Checks

• I've signed off every commit(by using the -s flag, i.e., git commit -s) in this PR.
• I've run scripts/format.sh to lint the changes in this PR.
• I've included any doc changes needed for https://docs.ray.io/en/master/.
  • I've added any new APIs to the API Reference. For example, if I added a
    method in Tune, I've added it in doc/source/tune/api/ under the
    corresponding .rst file.
• I've made sure the tests are passing. Note that there might be a few flaky tests, see the recent failures at https://flakey-tests.ray.io/
• Testing Strategy
  • Unit tests
  • Release tests
  • This PR is not tested :(

[alanwguo]

Given the number of columns, let's move it before the "Restarted" column. I think that orders it relatively more in order of importance.