uses android API for BLE on android

1st try
add missing buildozer.spec
add version
fix version
desactivate ddd usage
remove rtmidi import/use
only get bluez if not on android
fix Autoclass -> autoclass
fix PythonActivity path
add prints to androidhelpers, hopefully find the segfault
get BLUETOOTH_SERVICE from Context class
fix interface signature
add missing self to method >_>
add lengh of scan_record to logged result
try to get updated information of the ble device
fix update_results signature
what info can we get from device…
try to get some info
use restart_scanning to get new updates?
fix restart_scanning usage