Change log:
- new example application with Push notifications which adhers _RFC 8599 and is based on Firebase data or silent Push notifications
- Enhanced logging: crash handler setup when SDK Service is started by Android, device information output on initialize and initializeForeground method call;
- fixed ringtone related crash on some Android devices (Xiaomi, Oppo);
- license key based feature support;
- fixed transmission of a few 10 ms RTP packets on media start even for non 10 ms setups, e.g. 20ms, 40ms, etc;
- added correct Bluetooth runtime permission check on API level 31+;
- fixed crash in Timer on API level 31+;
- added methods to retrieve license information;
- added argument for addAccount to set custom REGISTER headers;
- new Java example app with advanced Settings screen and IM functionality (based on SIP MESSAGE);
- new Kotlin example app with advanced Settings screen and IM functionality (based on SIP MESSAGE);