CB-12582: exec purgeProjectFileCache when pod install

[knight9999]

CB-12582

Platforms affected

Cordova iOS 4.5.4

What does this PR do?

Fix the pod install plugin (plugin with podspec framework) to work.

For example, phonegap-plugin-push plugin with GoogleService-Info.plist
(in config.xml, <resource-file src="GoogleService-Info.plist" /> is added)

The case,

cordova platform add ios@4.5.4
cordova plugin add phongegap-plugin-push
cordova prepare
cordova compile --device

works well.
The case,

cordova plugin add phonegap-plugin-push
cordova platform add ios@4.5.4
cordova prepare
cordova compile --device

does not work becuase the cordova overwrite project.pbxproj which is changed by pod install.
This pull request fixes this issue.

What testing has been done on this change?

Do in my local environment with cordova-ios 4.5.4

Checklist

• Reported an issue in the JIRA database
• Commit message follows the format: "CB-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
• Added automated test coverage as appropriate for this change.

[codecov-io]

Codecov Report

Merging #354 into master will increase coverage by 0.02%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #354      +/-   ##
==========================================
+ Coverage   63.45%   63.47%   +0.02%     
==========================================
  Files          14       14              
  Lines        1691     1692       +1     
  Branches      284      284              
==========================================
+ Hits         1073     1074       +1     
  Misses        618      618

Impacted Files	Coverage Δ
bin/templates/scripts/cordova/Api.js	54.19% <100%> (+0.29%)	⬆️

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[shazron]

Thank you for the PR! I think there is a related issue in JIRA, I'll try to find to it and link to it.

[shazron]

Seems to be https://issues.apache.org/jira/browse/CB-12582?focusedCommentId=16096440&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16096440

[knight9999]

Yes, I think the link is same issue I met.
pod install command update project.pbxproj we should clear the cache as my PR.

[shazron]

Can you add a prefix to this PR title? Add "CB-12582 " to enable auto GH and JIRA issue linking