Add Infernal Engine

[MichaelHinrichs]

SteamDB app page links to a few games using this

https://steamdb.info/app/3810/ https://steamdb.info/app/3820/ https://steamdb.info/app/9870/ https://steamdb.info/app/220050/ https://steamdb.info/app/719070/ https://steamdb.info/app/1373510/ https://steamdb.info/app/1373550/ https://steamdb.info/app/1449280/ https://steamdb.info/app/1956430/

Brief explanation of the change

Add the Infernal Engine, by Terminal Reality, from some of it's POD files. closes #297

[SteamDB-Tracker]

After running changed rules in this pull request (this bot only tests rules.ini changes):

Changed technologies: Engine.Infernal_Engine

These apps now match: (13) 3810 3820 3850 9870 220050 358370 420380 437210 719070 1373510 1373550 1449280 1956430

Please confirm that all these changed apps are correct.

[Lifeismana]

merged in dda45368dfb90c0c75eacd5188b07d0bb839b906