Moves the encryption classes to their own package

src/test/java/net/knarcraft/bookswithoutborders/GenenCryptTest.java

@@ -1,5 +1,6 @@
 package net.knarcraft.bookswithoutborders;
 
+import net.knarcraft.bookswithoutborders.encryption.GenenCrypt;
 import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;