Added Xorwf Instruction (#24)

Co-authored-by: Darkress <30271678+DarkressX@users.noreply.github.com>
Reviewed-on: darkress/pic16f84-sim#24

de/darkress/pic16f84sim/Main.java

@@ -14,7 +14,7 @@ class Main
         ArrayList<Command> program = new ArrayList<>();
         Memory.workingRegister = 0x01;
         Memory.setRegister(0x14, 0xA5); //240 << 224
-        program.add(CommandDecoder.decode(0x0E94));
+        program.add(CommandDecoder.decode(0x0694));
         for(int i = 0; i < program.size(); i++)
         {
             program.get(ProgramCounter.getPc()).execute();