Add global option to save config in the dojorc

[agubler]

Type: feature

The following has been addressed in the PR:

• [x] There is a related issue
• [x] All code has been formatted with prettier as per the readme code style guidelines
• [x] Unit or Functional tests are included in the PR

Description:

Adds a global option to the CLI that will save the options passed to the .dojorc that will be used when running the command with no options on subsequents runs.

Resolves #211

[codecov[bot]]

Codecov Report

Merging #220 into master will decrease coverage by 0.21%. The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #220      +/-   ##
==========================================
- Coverage   95.06%   94.85%   -0.22%     
==========================================
  Files          19       19              
  Lines         507      525      +18     
  Branches       69       73       +4     
==========================================
+ Hits          482      498      +16     
- Misses         13       14       +1     
- Partials       12       13       +1

Impacted Files	Coverage Δ
src/registerCommands.ts	99.02% <100%> (-0.98%)	:arrow_down:
src/configurationHelper.ts	96.15% <0%> (-3.85%)	:arrow_down:

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[JamesLMilner]

I have made a new PR that should be bring this up to speed with master : https://github.com/dojo/cli/pull/255/files