add cvtColor command

src/main/java/de/monticore/lang/monticar/generator/cpp/commands/CvtColorCommand.java

@@ -19,7 +19,7 @@ import java.util.List;
  * @author Ahmed Diab
  */
 
-public class CvtColorCommand extends MathCommand{
+public class CvtColorCommand extends ArgumentReturnMathCommand{
     public CvtColorCommand() {
         setMathCommandName("cvtColor");
     }

src/test/resources/results/armadillo/testMath/l0/test_math_cvtColorCommandTest.h

@@ -9,13 +9,18 @@ using namespace arma;
 using namespace cv;
 class test_math_cvtColorCommandTest{
 public:
+mat src;
+int colorConversion;
+mat dst;
 void init()
 {
+src=mat(n,m);
+dst=mat(n,m);
 }
 void execute()
 {
-double a = (cvtColor(0, 0, 0, 0, 0));
+cvtColor(src, dst, colorConversion);
 }
 
 };
-#endif
+#endif
\ No newline at end of file

src/test/resources/test/math/CvtColorCommandTest.emam

@@ -2,7 +2,12 @@
 package test.math;
 
 component CvtColorCommandTest{
+port
+    in Q^{n,m} src,
+    in Z colorConversion,
+    out Q^{n,m} dst;
+
     implementation Math{
-        Q a = cvtColor(0,0,0,0,0);
+        dst = cvtColor(src, colorConversion);
     }
 }