Review create default values and small rework

[ath0mas]

Platforms affected

iOS

Motivation and Context

Mixed default values for create between cli doc, cordova-android and cordova-ios.

Description

Package ids were mostly correct but not all, and same for project name. Suggested proper defaults:

• id / package name: io.cordova.helloCordova
• name / project name: Hello Cordova

See linked PRs: apache/cordova-cli#554, apache/cordova-android#1213

And

• mimic code from cordova-android for createProject on how to init and deal with its parameters
• remove useless check on project_parent as fs.ensureDirSync is used

(see each commit for detail on my steps)

Testing

npm test success

Checklist

• I've run the tests to see all new and existing tests pass
• I added automated test coverage as appropriate for this change
• Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• I've updated the documentation if necessary

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (master@a3a3936). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1100   +/-   ##
=========================================
  Coverage          ?   74.88%           
=========================================
  Files             ?       13           
  Lines             ?     1724           
  Branches          ?        0           
=========================================
  Hits              ?     1291           
  Misses            ?      433           
  Partials          ?        0           

Impacted Files	Coverage Δ
bin/templates/scripts/cordova/lib/Podfile.js	73.20% <ø> (ø)

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