Adding submodules for client-common-java and emojicon

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>
Setup script will not clone anymore

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>
ANDROID_HOME will be set from environment

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>