Created @Interpolate annotation for Interpolators to know which fields to interpolate (instead of all public fields)

src/main/java/eu/crushedpixel/replaymod/interpolation/GenericLinearInterpolation.java

@@ -1,7 +1,6 @@
 package eu.crushedpixel.replaymod.interpolation;
 
 import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -23,7 +22,7 @@ public class GenericLinearInterpolation<T extends KeyframeValue> implements Inte
 
         List<Field> fields = new ArrayList<Field>();
         for(Field f : point.getClass().getDeclaredFields()) {
-            if(Modifier.isPublic(f.getModifiers())) {
+            if(f.isAnnotationPresent(Interpolate.class)) {
                 fields.add(f);
             }
         }