to include point downscaling updates

To include point downscaling updates in dev_logreg branch

When given point observations, the observations are not interpolated. Until now, the observations were gridded and then interpolated to the points of interest.

Reverted parallelisation of CDORemap because there was a bug. CDORemap without parallelising is fast

Fixed ncores

See merge request !9

# Conflicts:
#   R/Intlr.R
#   R/LogisticReg.R

Dev intlr error

See merge request !8

# Conflicts:
#   R/Intlr.R

included Sara and Jaume fixes for 4nn and paralelisation (also solved conflicts with atomic functions with or without dots in their name)

adapted functions to verification suite

See merge request !7

Adapted to new s2dv_cube

See merge request !6

different 'int + calibration' methods can be tested

See merge request !5

Adapted functions to verification suite

See merge request !4

Updated README

See merge request !3

Return also observations

See merge request !2

CSDownscale is an R package

See merge request !1