move java files to correct directory.

src/java/net/i2p/i2pfirefox/I2PFirefox.java

@@ -1,4 +1,4 @@
-package net;
+package net.i2p.i2pfirefox;
 
 import java.io.File;
 import java.io.IOException;

src/java/net/i2p/i2pfirefox/I2PFirefoxProfileBuilder.java

@@ -1,4 +1,4 @@
-package net;
+package net.i2p.i2pfirefox;
 
 import java.io.File;
 import java.nio.file.Files;

src/java/net/i2p/i2pfirefox/I2PFirefoxProfileChecker.java

@@ -1,4 +1,4 @@
-package net;
+package net.i2p.i2pfirefox;
 
 import java.io.File;