btstack: unified handling of zephyr read static address command

le_audio: per application unique hci dump file names

port: use btstack_strcpy and btstack_cat instead of strcpy/strcat

port: avoid warning in argv processing

libusb, posix and windows ports: use '-' instead of ':' in btstack_BD_ADDR.tlv filename

license: update text

posix: use bstack_signal to trigger shutdown for ctrl-c

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

hci_dump: use hci_dump_posix_fs with PacketLogger format in all posix ports

ports: disable hci dump in all ports

h4 posix ports: use btstack_uart_posix instead of btstack_uart_block_posix

zephyr: init sm in posix-h4-zephyr and windows-h4-zephyr

libusb and posix ports: store bonding information in TLV

posix-h4-zephyr: fix use of static address

posix: fix parsing of command line args to select USB or UART device

posix: use TLV with btstack_tlv_posix

hci_dump: print hci_dump.pklg path to console for all windows & posix ports

ports: add missing README.md files

posix-h4-zephyr: read static address via vendor specific command and use it

New posix-h4-zephyr port based on posix-h4 as default baud rate is 1000000