Test Client compilation for Android/iOS with Buildozer

[panagiks]

Test if using the Buildozer RSPET's client can be compiled and run on Android and iOS. If the test is successful feel free to open a PR adding the newly confirmed feature to RSPET's features list (on README.md). Remember to provide adequate documentation (a few screencaps to show the process was successful and that the basic functionalities can be executed). If the test is unsuccessful post you findings here for further discussion.