separate unittest folder

unittests/testcfg/devices/logicalAddresses.h

@@ -0,0 +1,13 @@
+#ifndef CONFIG_DEVICES_LOGICALADDRESSES_H_
+#define CONFIG_DEVICES_LOGICALADDRESSES_H_
+
+#include <fsfw/devicehandlers/CookieIF.h>
+
+#include <cstdint>
+
+namespace addresses {
+/* Logical addresses have uint32_t datatype */
+enum logicalAddresses : address_t {};
+}  // namespace addresses
+
+#endif /* CONFIG_DEVICES_LOGICALADDRESSES_H_ */