avrcp_browsing_client: add missing break

example: use sdp_create_service_record_handle() for sdp record and assert sdp record buffer is large enough, fixes #489

example/avrcp_browsing_client: remove local seid from a2dp_sink_establish_stream

examples: unify status stdout format

avrcp_browsing_client: add compile error if ERTM is not enabled

avrcp_browsing, goep_client: request 16-bit FCS for ERTM

example: init SM if LE supported to avoid issue with Android Cross-Transport Key-Derivation

license: update text

examples: use `btstack_event.h` getters instead of direct array access, use enum to compare status codes

fix static function prototypes

docu: copy editing examples titles

avrcp_browsing_client: update browsing code, register AVDTP sink service

avrcp: use defines instead of enum for features

exmaple/a2dp: improve example annotation

avrcp browsing: update channel opened, reconnection timer not yet handled

avrcp browsing: move disconnect to AVRCP API

avrcp browsing: move decline incoming connection to avrcp API

avrcp browsing: move configure incoming connection to avrcp

avrcp browsing: remove create connection from browsing controller and target, use instead single avrcp_browsing_connect, handle incoming connection

avrcp browsing: register l2cap service only once, move connection establishment to avrcp.c

avrcp browsing: move avrcp_browsing_disconnect to public avrcp.h API

avrcp browsing client: register avrcp packet handler and track avrcp connection establishment

avrcp: replace avrcp_target/controller_connect/disconnect with avrcp_connect/disconnect

avrcp: call avrcp_init explicitly

example/avrcp_browsing_client.c: fix warning