added a flag for modders, to check if Senseless is loaded: YSI_INSTALLED=true

Fixed a cargo capacity error introduced with update 1.21

Different vehicle cargo injection for bulk food and non-food, new symbol for electronic devices

Just a few cosmetic changes (cargo colour,..)

Configured cargo weights, fixed HQ crash and tweaked production capacities

Added copper and copper mill, added input cargo icons on industry icons

Buldozing costs and some tweaking of production chains

Major update of the FOOD and TEXTILE chains

Introduced an extended waste disposal chain

Introduces UNSORTED MAIL, that has to be handled by the Postal Sorting Center to become MAIL