初始提交卡包 USB 工程

纳入固件源码、屏幕组件、nand_xfer 工具和文档。忽略本机构建产物、sdkconfig，以及含本机路径的依赖锁。

Co-authored-by: Cursor <[email protected]>

CMakeLists.txt

@@ -0,0 +1,11 @@
+# The following four lines of boilerplate have to be in your project's CMakeLists
+# in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.16)
+
+set(EXTRA_COMPONENT_DIRS 
+    components
+    $ENV{IDF_PATH}/components
+)
+#set(PARTITIONS_TABLE_CSV partitions.csv)
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(mqtt5)