Add version defines

CMakeLists.txt

 set(${CMAKE_PROJECT_NAME}_SKETCH main.ino)
 generate_arduino_firmware(${CMAKE_PROJECT_NAME})
 
+add_definitions(-DAPP_CORE_VERSION=1.0.0)
+
+execute_process(
+        COMMAND
+        git rev-parse --short HEAD
+        RESULT_VARIABLE
+        SHORT_HASH_RESULT
+        OUTPUT_VARIABLE
+        SHORT_HASH
+)
+string(REGEX REPLACE "\n$" "" SHORT_HASH "${SHORT_HASH}")
+message(STATUS "SHORT_HASH=${SHORT_HASH}")
+add_definitions(-DAPP_CORE_COMMIT=${SHORT_HASH})
+
 if (CMAKE_BUILD_TYPE MATCHES "Debug")
     message(STATUS "Debug build detected. Enabling logs.")
     add_definitions(-DAPP_CORE_LOGS=1)