Stand-alone command-line interface to the obfuscate_bitmap()

function. Useful in conjunction with the new --save option to
generate lots of games, extract the aux strings from the game
generator, and de-obfuscate them in order to measure statistical
properties of their solutions.

[originally from svn r8352]

Recipe

@@ -53,6 +53,9 @@ const game *gamelist[] = { GAMELIST(REF) };
 const int gamecount = lenof(gamelist);
 !end
 
+# Unix standalone application for special-purpose obfuscation.
+obfusc : [U] obfusc STANDALONE
+
 # Mac OS X unified application containing all the puzzles.
 Puzzles  : [MX] osx osx.icns osx-info.plist COMMON ALL
 # For OS X, we must create the online help and include it in the