games/doom: experience it right from the start

add shareware doom v1.9 wad file to have games/doom be playable
immediately and with no extra effort by just typing `games/doom'.
/sys/games/lib/doom is one of the default directories scanned.  the
wad file must be named exactly `doom1.wad' for the game to be properly
configured as the shareware version and avoid weird glitches.

1 files changed, 0 insertions, 0 deletions

diff --git a/sys/games/lib/doom/doom1.wad b/sys/games/lib/doom/doom1.wad
new file mode 100644
index 000000000..1a58f6627
--- /dev/null
+++ b/sys/games/lib/doom/doom1.wad