core, android: new share widget + added Cagou to "share" menu: - new intent filter to add Cagou to share menu for all media types - minimum Kivy version is now 1.11.0 - new "Share" widget to display data to share via SàT and select the target - new core.platform_ module (the suffix "_" avoid trouble with standard "platform" module), for platform specific code. - Android intent are now checked on startup and "on_new_intent" events - if a android.intent.action.SEND action is received (i.e. some data is shared), the "Share" widget is shown - new Cagou.share method to share data using "Share" widget - new Cagou.getAncestorWidget method to easily retrieve an instance of a specific class in a widget's ancestors - ContactList's Avatar and ContactItem widgets have been moved to core.common

--- a/.p4a	Fri Dec 06 13:23:03 2019 +0100
+++ b/.p4a	Fri Dec 06 13:23:03 2019 +0100
@@ -21,4 +21,5 @@
 --permission RECORD_AUDIO
 --permission READ_EXTERNAL_STORAGE
 --permission WRITE_EXTERNAL_STORAGE
+--intent-filters /home/goffi/dev/cagou/android_intents/share.xml
 --ignore-setup-py