Remote environment support

[wingrunr21]

• Flags config options as machine or machine-overridable. Resolves Flag machine specific configurations like paths as machine scoped #490
• Officially supports remote environments. Resolves Remote environment support #551, Symbol strings (ex. :abc) via "Remote - SSH" are not correctly highlighted #483, Syntax Highlighting Breaks via Remote-WSL #537
• Migrates environment detection into the language server. Resolves Move environment detection to server #488
• Uses vscode-ruby-common for environment detection. Resolves Support fish shell in environment detection #523

[codecov]

Codecov Report

Merging #551 into master will increase coverage by 0.35%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master     #551      +/-   ##
==========================================
+ Coverage    34.1%   34.46%   +0.35%     
==========================================
  Files          11       11              
  Lines         173      177       +4     
  Branches       38       38              
==========================================
+ Hits           59       61       +2     
- Misses        109      111       +2     
  Partials        5        5

Flag	Coverage Δ
#language_server_ruby	5.3% <0%> (ø)	⬆️
#vscode_ruby_common	85.93% <50%> (-2.4%)	⬇️

Impacted Files	Coverage Δ
packages/language-server-ruby/src/Formatter.ts	0% <ø> (ø)	⬆️
packages/language-server-ruby/src/Linter.ts	0% <0%> (ø)	⬆️
packages/vscode-ruby-common/src/environment.ts	85.93% <50%> (-2.4%)	⬇️

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[connorshea]

❤️ thanks!