Adding Oofda & Poke, fix copyright notice.

Adding an experimental Object Sytem (Oofda).
Adding an experimental DI Framework (Poke).

attic/oofda/tests/test2.fs

@@ -0,0 +1,38 @@
+#! /usr/bin/env ueforth
+\ Copyright 2023 Bradley D. Nelson
+\
+\ Licensed under the Apache License, Version 2.0 (the "License");
+\ you may not use this file except in compliance with the License.
+\ You may obtain a copy of the License at
+\
+\     http://www.apache.org/licenses/LICENSE-2.0
+\
+\ Unless required by applicable law or agreed to in writing, software
+\ distributed under the License is distributed on an "AS IS" BASIS,
+\ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+\ See the License for the specific language governing permissions and
+\ limitations under the License.
+
+." test2.fs" cr
+
+needs ../oofda.fs
+
+class Foo
+  variable x
+  variable y
+  : .setX   x ! ;
+  : .setY   y ! ;
+  : .getX   x @ ;
+  : .getY   y @ ;
+  : .length2   this .getX dup * this .getY dup * + ;
+  : .print   ." x: " this .getX . ."  y: " this .getY . cr ;
+end-class
+
+class Bar extends Foo
+  : .dude   this .print this .print ;
+end-class
+
+Bar .new constant h
+123 h .setX 456 h .setY
+h .dude
+bye