[AGS] unknown game variant for 'ags-fallback' (Ninja)

[MarcoBorrini99]

The game in 'Ninja' seems to be an unknown game variant.

Please report the following data to the ScummVM team at
https://bugs.scummvm.org/ along with the name of the game you tried to add and
its version, language, etc.:

Matched game IDs for the ags engine: cosmos-demo, dirkchafberg-demo,
paranormality-demo, waitkey-demo, whattimeisit-demo, bluecupontherun,
bookofspells1, bookofspells2, bookofspells3, cutlass, darksects, hermit, ispy,
kidnapped, littlewillyshotgun, perpetrator, pixelypete, robblanc1, robblanc2,
robblanc3, slackerquest, sovietunionstrikesback, tullesworld3, blackwell1,
blackwell2, blackwell3, blackwell4, blackwell5, excavationhb, feriadarles,
geminirue, goldenwake, lamplightcity, mage, nellycootalot-hd, primordia,
puzzlebots, resonance, shardlight, shivahkosher, strangeland, technobabylon,
unavowed, zniwadventure, kq3vga, sq2vga, crimsondiamond-demo, oldskies-demo,
zidjourney-demo, captaindownes, contrapasso, kq4retold, offtheclock, ossuarium,
rogue, snipermotherland, sniperpatriotic, snipertower, sovietunterzoegersdorf1,
stairquest, stevequest, strangerthings, talesofjayvin, teafortwo,
theburgomaster, ags-fallback

{"ac2game.dat", 0, "6fc054fd5d69975566a1aba1985b3972", 769820},

[tag2015]

Thanks, added in ​6cf8b64