avrcp_controller: avoid out of bounds read

avrcp_controller: sent interim notification only once, as initial value

avrcp_controller: handle not implemented response for get capabilities command

avrcp: fix AVRCP button release request

avrcp_controller: improve variable names

avrcp_controller: reassemble fragmented AVCTP packets

avoid #include "btstack.h" by core stack

avrcp_controller: added avrcp_controller_start_press_and_hold_cmd

avrcp_controller: use bool press_and_hold_cmd field

avrcp: avoid out of bound reads in target and controller

avrcp: support de-init

# Conflicts:
# src/classic/avrcp_target.h

avrcp: fix reading packet type from vendor specific responses

avrcp_controller: allow to send multiple absolute volume commands without waiting for response.

avrcp_controller: rename transaction_label

avrcp_controller: track transaction per connection

src: remove commented code

avoid warning for set but unused variables when log_info and log_error are disabled

add missing default switch cases

avrcp_controller: fix transaction ID overrun

avrcp_controller: extract handle notification and send register notification functions

avrcp_controller: refactor emit notification

avrcp_controller: rename and rearrange functions

avrcp: fix parsing of signalling responses

a2dp_source, avrcp_controller: fix warnings

avrcp: fix compile