Uses DIXON_VERSION macro for version string

Updates the version logging to use the DIXON_VERSION macro.

This allows the version to be dynamically injected at compile time, instead of a hardcoded string.

src/RobotNode/main.cpp

@@ -46,7 +46,7 @@ int main()
     Dixon::DixonLogger logger("main");
 
     // The "Splash Screen"
-    logger.info("Dixon core is starting. Version: {}", "1.x.x");
+    logger.info("Dixon core is starting. Version: {}", DIXON_VERSION);
 
     const sigset_t set = prepare_signal_set();
     pthread_sigmask(SIG_BLOCK, &set, nullptr);

src/RobotNode/version.txt

@@ -1 +1 @@
-1.0.56
+1.0.57