Add adb & mtp

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/user/configs/console/android/default.nix

@@ -0,0 +1,7 @@
+{
+  username ? throw "username argument is required",
+}:
+{ ... }:
+{
+  users.users.${username}.extraGroups = [ "adbusers" ];
+}