example/hfp_hf_demo: set Apple Accessory Information

example/hfp: use create SDP record with codecs

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

example/hfp_hf_demo: support lc3-swb

example/hfp_hf_demo: fix accidental commit from 712e3b1

example/hfp_hf_demo: fix build without HAVE_BTSTACK_STDIN

example/hf_hf_demo: improve documentation, split packet handlers, use sdp record handle generator

examples: unify status stdout format

hfp_hf_demo: answer pin code request

example: avoid HCI_EVENT_IS_COMMAND_COMPLETE macro

example/hfp_hf_demo: print alpha CLIP alpha field

example: allow role switch in a2dp_sink_demo and hfp_hf_demo

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

license: update text

hfp_hf: emit initial AG indicators values

hfp_hf_demo: trigger hfp_hf_enhanced_voice_recognition_report_ready_for_audio on enhanced VRA activated

hfp_hf: send explicit AG indicators mapping after the SLC is established

hfp: fix check on legacy vs. enhanced VRA activation

hfp: rename VRA events to match the API functions

hfp_hf: use hfp_hf_de/activate_voice_recognition for both legacy and enhanced VRA

hfp: use HFP_SUBEVENT_VOICE_RECOGNITION_ENABLED/DISABLED instead of HFP_SUBEVENT_VOICE_RECOGNITION_STATUS event

hfp: emit call answered and terminated events

hfp_ag: emit event HFP_SUBEVENT_CALL_TERMINATED before audio connection is closed

hfp_hf_demo: check status of SLC connection establisment

hfp: fix type in event name HFP_SUBEVENT_STOP_RINGING and HFP_SUBEVENT_START_RINGING