Added demo applicaion showcasing sp65 in combination with GEOS.

TODO: Fix the assert() calls.

git-svn-id: svn://svn.cc65.org/cc65/trunk@5699 b7a2c559-68d2-44c3-8de9-860c34a00d81

samples/geos/bitmap-demores.grc

@@ -0,0 +1,5 @@
+HEADER APPLICATION "Bitmap Demo" "Bitmap Demo" "V1.0" {
+    author    "Oliver Schmidt"
+    info      "This is a minimalistic cc65 GEOSLib bitmap demo program written in C."
+    date      12 06 10 12 00
+}