fix: aio app pack, aio app install output cleanup, fixes

[shazron]

• add npm install step to aio app install (if not aio app test will fail)
• aio app pack will not include the output zip (if it exists in the project)
• cleaned up info output by using ora spinner
• updated tests and coverage

How Has This Been Tested?

• npm test
• manual tests

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

Merging #671 (e44de8c) into master (d520556) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #671   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           57        57           
  Lines         3022      3065   +43     
  Branches       561       569    +8     
=========================================
+ Hits          3022      3065   +43     

Impacted Files	Coverage Δ
src/commands/app/install.js	100.00% <100.00%> (ø)
src/commands/app/pack.js	100.00% <100.00%> (ø)
src/commands/app/test.js	100.00% <100.00%> (ø)

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