Master
* Including capability Import MODFLOW model, to import a model from the NAM
file, and translate it in a FREEWAT model
* Including support of SWI2 Package (Seawater Intrusion)
* IPAKCB flag set equal to cbc unit number for each MODFLOW package, in order to
get ZONE BUDGET calculations of flow terms
* Improvement of ParticleTracking post-processing: now working also with rotated
and/or non-uniform grids
* Added csv templates: chd_parameters.csv and h_campaigns.csv
* Bug fix in Zone Budget: zones IDs with up to 4 digits can now be written in
the .zon file
* Bug fix in Installer

Calibration
* Added a module to automatically create input files for head observations
(i.e., a point shp file with head measurements points and one csv file for each
head measurement point), starting from a csv containing all head measurements

Water management and crop modelling
* Kc and ROOT values are now written stress period by stress period in different
files renamed like KC_0.in, KC_1.in, ..., ROOT_0.in, ROOT_1.in, ... 
* Modified the format used to write the farms, crops and soils IDs (IDs with up
to 3 digits can now be written)
* Buk fix: psi1 value is correctly read as a floating point number