Add "yarn global outdated"

[MatthiasWinkelmann]

Summary

Adds the command "yarn global outdated", as requested in #1623. This brings the "global" namespace in line with, well, the "global namespace".

Test plan

A test was added.

Change

Before:

~/p/yarn ❯ yarn global outdated
yarn global v1.10.1
error Invalid subcommand. Try "add, bin, dir, ls, list, remove, upgrade, upgrade-interactive"
info Visit https://yarnpkg.com/en/docs/cli/global for documentation about this command.

Now:

~/p/yarn ❯ ./bin/yarn global outdated
yarn global v1.13.0-0
info Color legend :
 "<red>"    : Major Update backward-incompatible updates
 "<yellow>" : Minor Update backward-compatible features
 "<green>"  : Patch Update backward-compatible bug fixes
Package      Current Wanted Latest Package Type URL
editorconfig 0.14.2  0.14.2 0.15.0 dependencies https://github.com/editorconfig/editorconfig-core-js#readme
elm-format   0.8.0   0.8.1  0.8.1  dependencies https://github.com/avh4/elm-format
lighthouse   3.2.0   exotic exotic dependencies https://github.com/GoogleChrome/lighthouse
✨  Done in 0.50s.

[buildsize]

File name	Previous Size	New Size	Change
yarn-[version].noarch.rpm	1.09 MB	1.09 MB	-215 bytes (0%)
yarn-[version].js	4.26 MB	4.26 MB	371 bytes (0%)
yarn-legacy-[version].js	4.44 MB	4.44 MB	371 bytes (0%)
yarn-v[version].tar.gz	1.1 MB	1.1 MB	1.5 KB (0%)
yarn_[version]all.deb	803.52 KB	803.77 KB	258 bytes (0%)

[buildsize]

File name	Previous Size	New Size	Change
yarn-[version].noarch.rpm	1.09 MB	1.09 MB	-213 bytes (0%)
yarn-[version].js	4.26 MB	4.26 MB	371 bytes (0%)
yarn-legacy-[version].js	4.44 MB	4.44 MB	371 bytes (0%)
yarn-v[version].tar.gz	1.1 MB	1.1 MB	1.45 KB (0%)
yarn_[version]all.deb	803.52 KB	803.67 KB	154 bytes (0%)

[thewashingtonhua]

Any updates on this? Looks like most works are done. What's the hold up? Anything we can do to help?

[waleedahmed3045]

Test and changes ran positive

[MatthiasWinkelmann]

Merge this, fork it, or close. I don't plan on once again updating the changelog, just to wait for review when the changelog is out of sync again.