refine docropfields to individual_vegetation/pavement/water

[stefanfluck]

right now, cropfields shp sets vegetation to 2. this can be exploited -> rename to individuallanduse. then, assign objektart 1001, 1003, ... for individually set vegetation types, 1101... for crop types. 2001, 2002... for individual water types and 3001 for individual pavement types.

then in script, make individlanduse array. make a np.where, filter for values between 1000 and 1999, change vegarr based on it. filter between 2000-2999 and change watarr based on it. filter between 3000-3999 and change pavarr based on it (after dopavedbb, because pave is added ontop).

[stefanfluck]

oder custom_vegetation/../..

[stefanfluck]

check need for this.