port: ignore '*demo_util*' when examples are globbed

port: add ENABLE_GOEP_L2CAP to desktop builds

port: enable cover art for desktop ports

port: streamling CMake build files, fix .h not getting generated in some ports

port: make pkg-config check optional where possible, add portaudio

port: avoid HCI_EVENT_IS_COMMAND_COMPLETE macro

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

ports: add link to documentation in btstack_config.h

btstack_config: use official terms for l2cap channel modes - ENABLE_L2CAP_LE_CREDIT_BASED_FLOW_CONTROL_MODE

CC2564C: update for Service Pack v1.5. Use CC2564C version in most ports

qt: rework shutdown on 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

hci_dump: disable hci_dump for ports and tests

h4 posix ports: use btstack_uart_posix instead of btstack_uart_block_posix