Added create Matrix and solves Test 1

matrix.c

@@ -6,7 +6,11 @@
 
 Matrix createMatrix(unsigned int rows, unsigned int cols)
 {
-    
+    Matrix matrix;
+    matrix.rows = rows;
+    matrix.cols = cols;
+    matrix.buffer = (float*) calloc(rows * cols, sizeof(float));
+    return matrix;
 }
 
 void clearMatrix(Matrix *matrix)