hfp: use acl_handle and sco_handle in events

hid_host: define HID_SUBEVENT_SNIFF_SUBRATING_PARAMS event

hids_client: define GATTSERVICE_SUBEVENT_HID_SERVICE_REPORTS_NOTIFICATION event

hids_client: get protocol mode, update pts test

hids_client: emit HID information

hids_client: add service index to GATTSERVICE_SUBEVENT_HID_REPORT event

hids_client: emit report event, add example

hids_client: add REPORT event, add report mode to connected event

hids_client: skeleton code for connect

btstack_defines: add events for SPP-like GATT services

avrcp: new field button_pressed in AVRCP_SUBEVENT_OPERATION

scan_parameters_service: implement write without response for scan parameters

ble/device_information_service: rename event, handle events in example

ble/device_information_service: add att_status to events

ble/device_information_service: events for characteristics

ble/battery_service_client: reimplement polling, add manual poll and API documentation

ble/battery_service: register for notification, or poll battery level

ble/battery_service_client: rename event

ble/battery_service_client: implement query services

hid_host: extend HID_SUBEVENT_SET_PROTOCOL_RESPONSE event with protocol_mode field

hid_host: add new HID_SUBEVENT_DESCRIPTOR_AVAILABLE event

hid_host: add report event

hid_host: add set report and get/set protocol events

hid_host: add HID_SUBEVENT_GET_REPORT_RESPONSE event

hid_host: add incoming connection event