Create CMakeLists

This will allow users using CMake toolchains (like myself) to include this as a component.

Author: jojo2357

CMakeLists.txt

@@ -0,0 +1,14 @@
+set(COMPONENT_SRCDIRS
+        "src"
+        )
+
+set(COMPONENT_ADD_INCLUDEDIRS
+        "src"
+        )
+
+# Arduino-ESP32 core https://github.com/espressif/arduino-esp32
+set(COMPONENT_REQUIRES
+        "arduino-esp32"
+        )
+
+register_component()