add some app infrastructure services

src/main.cpp

@@ -6,6 +6,8 @@
 #include <QQmlContext>
 
 #include "TimerComponent.hpp"
+#include "LoggerService.hpp"
+#include "ConfigService.hpp"
 #include "synth/AudioEngine.hpp"
 
 int main(int argc, char* argv[]) {
@@ -28,8 +30,12 @@ int main(int argc, char* argv[]) {
         return -1;
     }
 
+    // create app objects
+    ConfigService config = ConfigService("config/sonobulus.cfg");
+    LoggerService logger = LoggerService(&config, "Engine");
+
     // audio synthesizer doohickey
-    AudioEngine audioEngine = AudioEngine();
+    AudioEngine audioEngine = AudioEngine(&logger);
     audioEngine.start();
 
     // execute app