implemented SNV-pretreatment
Merge branch 'master' of https://github.com/tforkmann/calibration-model-biogas-plant-bitterfeld

Conflicts:
	README.md
readme updated
added models: MSEP and R^2
deleted old data
implemented RMSECV, SD and RPD
description of plots
updated script structur
added table for y-loadings and changed table variables
added intercept, created summary tables which needs to be fixed