This commit changes "ProcState" to store "file_fetcher" field in an "Arc",
allowing it to be preserved between restarts and thus keeping the state
alive between the restarts. File watchers for "deno test" and "deno bench"
now reset "ProcState" between restarts.
This commit adds a cache for CJS and ESM analysis that is backed by an
SQLite file.
The connection to the DB is lazily created on first use, so shouldn't
have impact on the startup time.
Benched with running Vite
Deno v1.26:
```
$ deno task dev
Warning deno task is unstable and may drastically change in the future
Task dev deno run -A --unstable --node-modules-dir npm:vite
VITE v3.1.4 ready in 961 ms
➜ Local: http://localhost:5173/
➜ Network: use --host to expose
```
This branch:
```
../deno/target/release/deno task dev
Warning deno task is unstable and may drastically change in the future
Task dev deno run -A --unstable --node-modules-dir npm:vite
VITE v3.1.4 ready in 330 ms
➜ Local: http://localhost:5173/
➜ Network: use --host to expose
```
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
