AGI: Add Full version of Tex McPhilip 3 to detection table

[EricOakford]

It turns out, the third Tex McPhilip game was actually completed and released!

I obtained it here: ​Tex McPhilip 3 - A Destiny of Sin (v1.02)

Here is what was output when trying to add it, complete with checksum:

Your game version has been detected using fallback matching as a
variant of agi-fanmade (Unknown v2 Game).
If this is an original and unmodified version or new made Fanmade game,
please report any, information previously printed by ScummVM to the team.
The game in 'tex3v102\' 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 agi engine: agidemo, bc-amiga, ddp-amiga,
goldrush-coco3, kq1-amiga, kq2-2gs, kq3-amiga, kq4-coco3, lsl1, mh1-coco3,
mh2-coco3, mixedup-2gs, pq1, sq1-st, sq2, xmascard, 2playerdemo, tetris,
agitetris1998, caitlyn, cardriver1, serguei1, serguei2, shifty0, sq0, sqx,
spacequest35

  {"logdir", 0, "587d15e1106e59c33053c01b301ffe05", 768},

[digitall]

Have added detection entry for this game. Please try testing with the next daily build.