Added variable to control plate detection size increase.

Adjusting it to a smaller value means slower detection but higher probability that the plate will be found (and vice versa)

src/openalpr/config.h

@@ -45,6 +45,8 @@ class Config
 
     bool opencl_enabled;
 
+    float detection_iteration_increase;
+    
     float maxPlateWidthPercent;
     float maxPlateHeightPercent;