feat(hw_cdc): create cmake config file

Create the Arduino Sketch source code CMakeLists.txt file that will include all source code files and header files in the proejct.

Author: SuGlider

idf_component_examples/hw_cdc_hello_world/main/CMakeLists.txt

@@ -0,0 +1,4 @@
+idf_component_register(
+    SRC_DIRS     "."
+    INCLUDE_DIRS "."
+)