Cargo Overhaul: Phase 1

-Ported Bay's cargo computer category system

-Created a box containing six flashes

-Crates have been tweaked significantly. Crates have been reduced to single item types where possible, namely with expensive crates such as weapons and armor. A total of 28 new crates have been added, including chemical and tracking implants, and raw materials can also be bought from cargo for a significant number of points (subject to change)
-Converted Bay's string based category system to a numerical flag system

-Fixed duplicated implant paths - thats what happens when you code until two in the morning

-Adjusted materials costs as follows:
50 Metal Sheets Cost: 10
20 Plasteel Sheets Cost: 30
50 Plasteel Sheets Cost: 50
50 Glass Sheets Cost: 10
50 Cardboard Sheets Cost: 10
25 Wood Planks Cost: 25
50 Wood Planks Cost: 40
30 Sandstone Blocks Cost: 20
10 Silver Ingots Cost: 30
20 Silver Ingots Cost: 45
10 Gold Ingots Cost: 30
20 Gold Ingots Cost: 45
10 Uranium Blocks Cost: 30
20 Uranium Blocks Cost: 45
10 Diamonds Cost: 60
10 Plasma Blocks Cost: 50
Commented out the mineral crates
Cleaned and organised supplypacks.dm
Merge pull request #1100 from Malkevin/Cargo_PhaseOne

Cargo Overhaul: Phase 1