Addition to build.lunar common functions

[Chad R. Kittel]

Attached is a proposed addition to build.lunar (theedge).  This addition
adds a default_game_config call, just like our default_config and
default_cvs_config.  This function just adds the --bindir and the
--datadir config settings to the same options that default_config
already provided to ./configure.

Doing this would produce less duplicated code in the game moonbase
modules and that is probably a good thing :)

Adding this to theedge would probably have to also add it to lunar if
we wanted to make use of this.  theedge and lunar would also have to be
version bumped to help ensure that the users have the lastest
build.lunar.

-- 
  _
(\o/) Chad 'v3rt1g0' Kittel <v3rt1g0 at lunar-linux.org>
 /_\  Milwaukee, WI (USA)
"...staring up at heaven from the bottom of a glass" - Savatage