Add flag --login/--no-login to skip console-generator

[purplecabbage]

Description

Add flag --login/--no-login to skip console-generator

Related Issue

Closes #241

Motivation and Context

There might be times where you could start a project in a disconnected state, and later add config to the project, currently users without an adobe id to login have to wait 2 minutes for the timeout.

How Has This Been Tested?

Manually, and with tests ...

Screenshots (if appropriate):

🔥🐝 aio app init --no-login  
...
? Which type of sample actions do you want to create?
select type of actions to generate (Press <space> to select, <a> to toggle all, <i> to invert sel
ection)
❯◯ Adobe Target
 ◯ Adobe Analytics
 ◯ Adobe Campaign Standard
 ◯ Adobe Experience Platform: Realtime Customer Profile
 ◯ Adobe Audience Manager: Customer Data
 ◉ Generic

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 #248 into master will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #248   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           21        21           
  Lines          766       766           
  Branches       104       104           
=========================================
  Hits           766       766           

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

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