feat: Support finding an unprefixed Info.plist file

[dpogue]

Platforms affected

iOS

Motivation and Context

Currently the Info.plist file in a generated iOS project is prefixed with the project name (i.e., HelloCordova-Info.plist), and plugins have to set up their config-file/edit-config directives to use wildcards like **/*-Info.plist.

The standard way for Xcode projects is to just have Info.plist in the project, and this gets us one step closer to supporting that.

Description

• Try to find an unprefixed Info.plist, falling back to the AppName-Info.plist
• Cache the result of the Xcodeproj name to avoid repeated globs
• Streamline plist loading to avoid reading the file twice
  • This allows us to drop the read-chunks dependency in next major

Testing

Added a new test for the Info.plist behaviour. All existing tests pass.

Checklist

• [x] I've run the tests to see all new and existing tests pass
• [x] I added automated test coverage as appropriate for this change

[codecov-commenter]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 94.62%. Comparing base (fe09756) to head (84a96f8). :warning: Report is 9 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #212      +/-   ##
==========================================
+ Coverage   93.86%   94.62%   +0.76%     
==========================================
  Files          20       20              
  Lines        4008     4021      +13     
==========================================
+ Hits         3762     3805      +43     
+ Misses        246      216      -30     

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