Add DFTE sources and tests

src/DeviceFrameworkTemplateEngineDebug.cpp

@@ -0,0 +1,28 @@
+#include "DeviceFrameworkTemplateEngineDebug.h"
+
+// Global logger pointer - starts as nullptr (disabled by default)
+DeviceFrameworkTemplateEngineLogger* deviceFrameworkTemplateEngineLogger = nullptr;
+
+// ============================================================================
+// LOGGING CONFIGURATION IMPLEMENTATIONS
+// ============================================================================
+
+bool deviceFrameworkTemplateEngineEnableLogging(DeviceFrameworkTemplateEngineLogger* logger) {
+    if (logger == nullptr) {
+        return false;
+    }
+    deviceFrameworkTemplateEngineLogger = logger;
+    return true;
+}
+
+void deviceFrameworkTemplateEngineDisableLogging() {
+    deviceFrameworkTemplateEngineLogger = nullptr;
+}
+
+bool deviceFrameworkTemplateEngineIsLoggingEnabled() {
+    return deviceFrameworkTemplateEngineLogger != nullptr;
+}
+
+DeviceFrameworkTemplateEngineLogger* deviceFrameworkTemplateEngineGetLogger() {
+    return deviceFrameworkTemplateEngineLogger;
+}