Added lookup table for the colors for optimization

Made test output a bit prettier
Made tests run function 10 times for higher accuracy

Implementierung/tricorn_V1.c

@@ -15,6 +15,16 @@ static unsigned converge(float c_real, float c_imag, unsigned n);
  */
 void tricorn_V1(float complex start, size_t width, ssize_t height, float res, unsigned n, _Bool color, unsigned char* img){
     int bytesPerColor = color ? 3 : 1;
+    unsigned char color_lookup_table[256][3];
+    if(color) {
+        for (int i = 0; i < 256; i++) {
+            color_lookup_table[i][0] = (unsigned char)((i * 3) % 255);
+            color_lookup_table[i][1] = (unsigned char)((i * 2) % 255);
+            color_lookup_table[i][2] = (unsigned char)((i * 5) % 255);
+        }
+    }
+
+
     
     // Absolute height for iteration purposes
     ssize_t actual_height = height > 0 ?  height : (ssize_t)(-height);
@@ -44,9 +54,9 @@ void tricorn_V1(float complex start, size_t width, ssize_t height, float res, un
                 img[position] =  value;
             }
             else{ // Temporary colors with random multipliers
-                img[position] = ((value*3) % 255);
-                img[position + 1] = ((value*2) % 255) ;
-                img[position + 2] = ((value*5) % 255);
+                img[position] = color_lookup_table[value][0];
+                img[position + 1] = color_lookup_table[value][1];
+                img[position + 2] = color_lookup_table[value][2];
             }
 
             position += bytesPerColor;