feat: add addEnvVar to components

[KyleTryon]

Added the ability to add environment variables to the Job, Run Command, and Executor components. Implements a method called addEnvVar() for the three components.

Example

myJob.addEnvVar('MY_VAR', 'my value');

Closes:

• 130

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Legend

[codecov[bot]]

Codecov Report

Merging #132 (2e22cf8) into main (477755b) will decrease coverage by 0.61%. The diff coverage is 75.00%.

@@            Coverage Diff             @@
##             main     #132      +/-   ##
==========================================
- Coverage   99.36%   98.75%   -0.62%     
==========================================
  Files          61       61              
  Lines         627      640      +13     
  Branches       49       54       +5     
==========================================
+ Hits          623      632       +9     
- Misses          3        5       +2     
- Partials        1        3       +2     

Impacted Files	Coverage Δ
src/lib/Components/Parameters/types/index.ts	100.00% <ø> (ø)
src/lib/Components/Commands/exports/Native/Run.ts	85.71% <50.00%> (-14.29%)	:arrow_down:
src/lib/Components/Executors/exports/Executor.ts	81.81% <60.00%> (-18.19%)	:arrow_down:
src/lib/Components/Job/index.ts	100.00% <100.00%> (ø)

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