Missing images in images/vehicles (added)

Created images for these vehicle classes:
AH6X_DZ
BAF_Offroad_D
hilux1_civil_3_open
PBX
Smallboat_1
UAZ_RU
UAZ_Unarmed_TK_CIV_EP1
UAZ_Unarmed_UN_EP1


*If there is a way to create a pull request against an existing issue I couldn't find it.