use little/big_endian_read/store_16/24/32

hci_transport: cleanup struct, add init(void *transport_config)

hci: added local version information callback to allow for runtime driver selection

remove btstack_control_h from hci_init. mark btstack_control, hci_transport, and hci_transport_config as const

chipset: remove all chipset functions from btstack_control.h and use from hci.c

hci: add hci_set_chipset and set it for all ports

hci: reserve additional byte after HCI Event for terminating \0

btstack-config.h -> btstack_config.h

structure btstack-config.h

hci_cmds -> hci_cmd

hci_create_cmd_internal -> hci_cmd_create_from_template

fix missing bstack_ for struct data_source and struct timer. utils->btstack_util

prefix data_source_t and timer_source_t with btstack

forgot to add files in earlier commit

rename bt_control_h top btstack_control.h

prefixed all linked list types and functions with btstack_

rename bk_linked_list_t to btstack_linked_list_t

rename bk_linked_list to btstack_linked_list

Merge branch 'master' into ble-api-cleanup

SCO: add hci_get_sco_packet_length to query SCO packet size needed for USB and use in hsp_hs_test

Merge branch 'master' into ble-api-cleanup

send write sco flow control enable if #HAVE_SCO_OVER_HCI

send baud rate command after downloading broadcom init script

hci: set bd addr after init script to make it work with bcm

implement l2cap timeout check for HAVE_TIME_MS