Devlog 1.7: New objects, modular architecture & tweaks

What's new:

• Added new items, objects & modular structures.

brick
canned_food_2
ceiling_lamp_1
cup_1
elevator_1
elevator_call_button_1
elevator_door_1_a
elevator_door_1_b
elevator_doorway_1
jerrycan_1
key_1
mask_2
mask_3
metal_crate_1
metal_crate_2
metal_scrap
nails_1
battery_3

• Texture and geometry topology tweaks.