Function discrete alloc np

This function is the simplest version of the https://github.com/ObjectVision/GeoDMS/wiki/Allocation-functions

It doesn’t allow for claims per region, only minimum and maximum claims for the whole study area, as defined by the second argument. It arguments are:

• TypeNames: (LUT: Uint8)->ItemName, LandUnitDomain,
• SuitabilityMaps: for each TypeNames { LandUnitDomain->Int32 },
• MinClaims: for each TypeNames { -> UInt32 },
• MaxClaims: for each TypeNames { -> UInt32 },
• Threshold: ->Int32)