hci: exit main hci_run after running non-working substate

hci: remove code to init new connection

already set in create_connection_for_bd_addr_and_type for new connection

hci: add hci_send_iso_packet_buffer

hci_dump: mark all hci events as incoming

hci: add hci_register_iso_packet_handler

hci: reduce #ifdefs in hci_run_general_gap_le

hci: implement periodic advertising sync and sync cancel

hci: manage periodic advertiser list on controller

hci: periodic advertising requires ENABLE_LE_PERIODIC_ADVERTISING

hci: trigger disconnect for dedicated bonding on read encryption key size complete

hci: emit dedicated bonding complete on pairing complete and encryption complete with error

hci: use 32-bit bit to store local supported commands

hci: make use of encryption key size v2 event

hci: send set event mask 2 during init

gap: set min encryption key size during init, if supported

gap: add gap_secure_connections_active() to query if BR/EDR Secure Connecions are possible

gap: add gap_secure_connections_active() to query if BR/EDR Secure Connecions are possible

hci: get iso packet buffers info

hci: fix handling of HCI Connection Complete with error (regression introduced in v1.5.1)

hci: skip send read local name if classic is not enabled

hci: fix le scan with filterlist

hci: fix warnings

hci: stop extended and periodic advertisements during halt

hci: extract hci_le_scan_stop

hci: rework hci halting states, stop scans and advertisements

# Conflicts:
# src/hci.c