Change the build system to CMake

CMakeLists.txt

@@ -0,0 +1,19 @@
+add_library(f4ll STATIC
+    src/console_handler.cpp
+    src/crc_handler.cpp
+    src/dma_helper.cpp
+    src/fault.cpp
+    src/memcpy_dma.cpp
+    src/packet_usart.cpp
+    src/str_util.cpp
+    src/usart_core.cpp
+)
+
+target_include_directories(f4ll PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}/inc
+)
+
+target_link_libraries(f4ll PUBLIC platform stm32cubemx)
+
+# ST code quality workaround - Suppres register storage class warning (C++17...)
+target_compile_options(f4ll PRIVATE -Wno-register)