windows: include <Windows.h> first
windows-winusb: document visual studio install requirements
port: update to CMake 3.12, mark PortAudio as optional, add pthread lib for posix
port: avoid duplicate library warning for CMake
windows-usb: fix readme
windows-winusb: improved zadig instructions, added images
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
windows ports: update readme for cmake build
port: make pkg-config check optional where possible, add portaudio
windows ports: enable PortAudio via pkg-config in CMake build
port: mention Visual Studio in windows ports
windows-winusb: fix cmake build
port: fix .gatt -> .h conversion in cmake builds
port: add missing BTSTACK_ROOT
port: use find_package(python) in cmake builds
windows-winusb: cmake build file
windows: use windows btstack_tlv and hci dump implementations
port: use btstack_strcpy and btstack_cat instead of strcpy/strcat
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
license: update text
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