New Matrix and Cube support for unsigned chars (CV related)

src/main/java/de/monticore/lang/monticar/generator/MathBackend.java

@@ -10,8 +10,12 @@ import de.monticore.lang.math._symboltable.matrix.MathMatrixVectorExpressionSymb
 public interface MathBackend {
     String getMatrixTypeName();
 
+    String getMatrixTypeUnsignedCharName();
+
     String getCubeTypeName();
 
+    String getCubeUnsignedCharName();
+
     String getMatrixInitString(int sizeN, int sizeM);
 
     String getRowVectorTypeName();

src/main/java/de/monticore/lang/monticar/generator/cpp/ArmadilloBackend.java

@@ -18,11 +18,21 @@ public class ArmadilloBackend implements MathBackend {
         return "mat";
     }
 
+    @Override
+    public String getMatrixTypeUnsignedCharName() {
+        return "arma::Mat<unsigned char>";
+    }
+
     @Override
     public String getCubeTypeName() {
         return "cube";
     }
 
+    @Override
+    public String getCubeUnsignedCharName() {
+        return "Cube<unsigned char>";
+    }
+
     @Override
     public String getMatrixInitString(int sizeN, int sizeM) {
         return "(" + sizeN + "," + sizeM + ");\n";

src/main/java/de/monticore/lang/monticar/generator/cpp/LinalgBackend.java

@@ -15,11 +15,22 @@ public class LinalgBackend implements MathBackend {
         return null;
     }
 
+    @Override
+    public String getMatrixTypeUnsignedCharName() {
+        return null;
+    }
+
     @Override
     public String getCubeTypeName() {
         return null;
     }
 
+    @Override
+    public String getCubeUnsignedCharName() {
+        Log.info("Cube Unsigned Char Type not supported by currentBackend. ", getBackendName());
+        return null;
+    }
+
     @Override
     public String getMatrixInitString(int sizeN, int sizeM) {
         return "(" + sizeN + "," + sizeM + ");\n";

src/main/java/de/monticore/lang/monticar/generator/cpp/OctaveBackend.java

@@ -18,12 +18,24 @@ public class OctaveBackend implements MathBackend {
         return "Matrix";
     }
 
+    @Override
+    public String getMatrixTypeUnsignedCharName() {
+        Log.info("Matrix Unsigned Char Type not supported by currentBackend. ", getBackendName());
+        return null;
+    }
+
     @Override
     public String getCubeTypeName() {
         Log.info("Cube Type not supported by currentBackend. ", getBackendName());
         return null;
     }
 
+    @Override
+    public String getCubeUnsignedCharName() {
+        Log.info("Cube Unsigned Char Type not supported by currentBackend. ", getBackendName());
+        return null;
+    }
+
     @Override
     public String getMatrixInitString(int sizeN, int sizeM) {
         return "(" + sizeN + "," + sizeM + ");\n";