New method ConfigParser.getByName to find a resource containig a stri…

[giuseppelanzi]

…ng in its src.

Needed to fix cordova-ios, which is erroneously using getBySize when more than one resource have the same dimensions.

[janpio]

Where and why would this method be useful?

[brody4hire]

We need an answer to the question by @janpio before we consider merging this one:

Where and why would this method be useful?

[brody4hire]

Where and why would this method be useful?

I would favor closing this PR if we do not get this question answered soon. I left a review to avoid a premature merge.

[giuseppelanzi]

I added it while I was using cordova-ios@4.5.4 (which I still use a fork of) because getting resource by size is ambiguous: icon-40@2x.png has the same size of AppIcon40x40@2.png.

The icon-40@2x.png was missing in my builds because of the mapIconResources method in prepare.js file which defines two resources with same size.

I forked cordova-ios and changed prepare.js removing the resources for apple watch, but it would be more correct to be able to look for a resource by name.
https://github.com/giuseppelanzi/cordova-ios/blob/834cd16d13a5badda80049c2f62a3b60b393c15b/bin/templates/scripts/cordova/lib/prepare.js

The current prepare.js still has the issue
https://github.com/apache/cordova-ios/blob/master/bin/templates/scripts/cordova/lib/prepare.js

[janpio]

Ok, so this is preparatory work for an incoming cordova-ios PR that could fix an issue with it, correct? If so, please make sure that an issue for cordova-ios about this problem you described exists (and links to this PR as a precondition) so we don't forget to actually implement this ;)