fix: Various ObjC/template cleanups

[dpogue]

Replaces #1347 since something went wrong with rebasing there 😕

Platforms affected

iOS

Motivation and Context

Minor cleanup and modernization of the Xcode project structure to better align with current Xcode conventions.

Description

• Moved application classes out of the Classes folder and to the root of the Xcode project.
• Removed several debug information prints to the console on app launch that have not been useful for several years.
• Only print the Cordova version to the console in debug mode (to avoid exposing framework information on all Cordova apps)

Testing

All unit tests pass.
Builds successfully in Xcode.

Checklist

• I've run the tests to see all new and existing tests pass

[codecov-commenter]

Codecov Report

Merging #1354 (d079951) into master (ad57677) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1354   +/-   ##
=======================================
  Coverage   78.25%   78.25%           
=======================================
  Files          15       15           
  Lines        1789     1789           
=======================================
  Hits         1400     1400           
  Misses        389      389           

Impacted Files	Coverage Δ
lib/create.js	94.59% <ø> (ø)

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[erisu]

LGTM

• Tested building of default app and custom app.