[Android]: future proofing - resource optimization workaround

[Shchvova]

Starting with next Android Plugin, Google would start to rename resources, so the file names would have to be mapped.

To test, remove android.enableResourceOptimizations=false from gradle.properties and run put SampleCode/Interface/WidgetDemo there.

Potential fix is to map file names FileService.java or implement mapping function there and put it everywhere.

[Shchvova]

(thank you again google 😒)