PHOENIXVR: DETECTION: Unknown game variant for Necronomicon German version

[indy4fan]

Hi, this is the german retail version of "Necronomicon: Mysterium der Dämmerung", which I recently bought.

The game comes on 2 CDs and there are also some double files in the DATA folder, which are of a different size each. So this might need some more fixing.

The game in 'PHOENIXVR-NECRONO-DE\' 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 phoenixvr engine: necrono-us

{"script.pak", 0, "da42a18dd02fc01f116228d5c219b2fd", 215},
{"textes.txt", 0, "c3af2d55b4fa55d200b047b6ec0d9f73", 5507},

[tag2015]

See #16863