Use lambdas for dispatcher, code cleanup, test updates (#958)

* Using lambdas instead of member function pointers simplifies the command dispatching and reduces the code volume

* Removed duplicate error handling

* Fix for issue #956

* Unit test updates

* Resolved SonarQube issues

cpp/devices/scsimo.cpp

@@ -49,7 +49,7 @@ void SCSIMO::Open()
 		SetBlockCount(size >> GetSectorSizeShiftCount());
 	}
 
-	super::ValidateFile();
+	Disk::ValidateFile();
 
 	SetUpCache(0);
 
@@ -59,7 +59,7 @@ void SCSIMO::Open()
 	}
 }
 
-vector<byte> SCSIMO::InquiryInternal() const
+vector<uint8_t> SCSIMO::InquiryInternal() const
 {
 	return HandleInquiry(device_type::OPTICAL_MEMORY, scsi_level::SCSI_2, true);
 }