Forage Contracts v1.0.4.0

Forage Contracts v1.0.4.0 Implements field forage harvest contracts Changelog v1.0.4.0 – fix missions disappear on acceptance (#25) – support new BC setting fieldCompletion – adequate sellpoints (#11) – mow header for grain chaff missions (#16) – lowered reward/ha, lower prob on forage-ready fields (#16) Changelog v1.0.1.1 – fix MP sync (#3) – Russian, Czech translation (#5) Changelog v1.0.1.0 – Allow choppedmaize fillType for Maize+ (#2) – Handle fillTypeCategories in selling stations (#3)