freedoom/attic: Old Freedoom resources never die, they just get put in the attic

tükrözi: https://github.com/freedoom/attic

Georgy Samoilov e3ace68fa1 Take out the unrelated stuff, commit and squash		6 hónapja
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door15_1.png	e3ace68fa1 Take out the unrelated stuff, commit and squash	5 hónapja
door15_2.png	e3ace68fa1 Take out the unrelated stuff, commit and squash	5 hónapja
spcdoor5.png	e3ace68fa1 Take out the unrelated stuff, commit and squash	5 hónapja