license: update text

src: add title to header files

hci_transport: extract convenience function declaration for h4, h5, em9304_spi, and usb into separate hci_transport_{type}.h

hci_transport: add parity to hci_transport_config_uart_t

hci_transport_h4: add hci_transport_h4_instance_for_uart with btstack_uart

hci_transport_h5: new implementation based on btstack_uart driver with SLIP support

hci_transport: remove packet type defines provided by bluetooth.h

hci: extract internal definitions from bluetooth.h

Use FILENAME_H as include guard (MISRAC2012-Rule-21.1)

em9304: add hci_transport_em9304_spi.c

h5: add hci_transport_h5_enable_bcsp_mode() to use BCSP with CSR chipsets

docs: spelling fixes from https://github.com/mattkelly/btstack/commit/eaec219ce05225e60bf47441c9acf1f55377fba6

hci_transport: add set_sco_config and call when nr. of SCO connections changes

libusb: allows to specify USB dongle with hci_transport_usb_set_path

h5: support for auto-sleep mode after link inactivity

hci_transport/btstack_uart_block: create btstack_uart_block_embedded on top of hal_uart_dma. Pass in uart driver to H4/H5 instances

hci_transport: add reset_link function

h5: add hci_transport_h5_instance

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

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

use hci_transport_TYPE_instace() consistently. Fix iOS port build

run_loop.h -> btstack_run_loop.h

hci_transport_h4.c -> hci_transport_h4_posix.c

hci_trasport: add type to hci transport config, update all ports

fix accidental commit