Performance improvements

[TwitchBronBron]

Fixes several performance issues related to globbing for files.

• run all glob lookups in parallel instead of sequentially
• negative globs no longer run a glob and then remove those entries from the overall result. Instead, the negative globs are used to filter previous matches. This is significantly faster.
• switch to a faster glob library. We currently use node-glob. Based on my preliminary tests, fdir is the fastest. However, there's a bug in that library right now related to symlinks, so for now we will use fast-glob. (EDIT: fdir has a few other design differences that prevent us from switching. fast-glob is plenty fast).
  

To benchmark this, I ran the following roku-deploy command against a folder with >64,000 files:

await rokuDeploy.getFilePaths([
    '**/*',
    '!**/node_modules/**/*'
], "path/to/folder");

Results:
baseline (before rewrite):
24.409 ops/sec, duration: 47s318ms

after rewrite (using node-glob):
916.974 ops/sec, duration: 1s626ms

after rewrite (using fast-glob):
3,147.138 ops/sec, duration: 0s367ms

[livecano]

Very nice!