- Remove ability to specify run arguments like `--allow-net` after the
  script argument. It's too hacky to make work with clap.
- Remove `--v8-options`, instead use `--v8-flags=--help`
- Give more descriptive names to unit tests in flags.rs
- Assume argv and subcommand into DenoFlags struct so the output of
  flags module is only DenoFlags rather than the tuple (subcommand, flags,
  argv).
- Improve CLI help text
- Make `deno run` specific args like `--allow-net` only show up in 'deno
  help run' instead of as global flags in `deno help`.
- Removes `deno version` to simplify our implementation and be closer to
  clap defaults. `deno -V` now only shows Deno's version and not V8's nor
  TypeScript. `Deno.versions` can be used to see that information.
- Prevent clap from auto-detecting terminal width and attempting to wrap
  text.

This PR removes tokio_util::block_on - refactored compiler and file 
fetcher slightly so that we can safely block there - that's because 
only blocking path consist of only synchronous operations.

Additionally I removed excessive use of tokio_util::panic_on_error 
and tokio_util::run_in_task and moved both functions to cli/worker.rs, 
to tests module.

Closes #2960

After landing #3358 the benchmarks exploded indicating problems with workers and deno_core_http_bench.

This PR dramatically fixes thread/syscall count that showed up on benchmarks. Thread count is not back to previous levels but difference went from hundreds/thousands to about ~50.

Removes three CI jobs

- Make assertThrows() return the Error
- Remove WalkOptions::onError()

- removes global `RESOURCE_TABLE` - resource tables are now created per `Worker`
  in `State`
- renames `CliResource` to `StreamResource` and moves all logic related
  to it to `cli/ops/io.rs`
- removes `cli/resources.rs`
- adds `state` argument to `op_read` and `op_write` and consequently adds
  `stateful_minimal_op` to `State`
- IMPORTANT NOTE: workers don't have access to process stdio - this is
  caused by fact that dropping worker would close stdout for process
  (because it's constructed from raw handle, which closes underlying file
  descriptor on drop)

* loader: support .wasm imports

* http_server: true

* Support named exports

* Clippy

This patch does not work with the recent bundler changes (#3325).
Unfortunately I didn't merge master before landing this patch. It has
something to do with console.log not working inside the compiler worker.

This reverts commit fd62379e.

- removes global `RESOURCE_TABLE` - resource tables are now created per `Worker`
  in `State`
- renames `CliResource` to `StreamResource` and moves all logic related
  to it to `cli/ops/io.rs`
- removes `cli/resources.rs`
- adds `state` argument to `op_read` and `op_write` and consequently adds
  `stateful_minimal_op` to `State`
- IMPORTANT NOTE: workers don't have access to process stdio - this is
  caused by fact that dropping worker would close stdout for process
  (because it's constructed from raw handle, which closes underlying file
  descriptor on drop)

This reverts commit dbf861f8.

Using an editor, such as VSCode, some of the plugins require some
files locally to provide a good editing experience.  These were
removed from the repo, but allowing people to add them back locally
but ensure they don't end up committed by accident would be helpful.