CR-01 - Changing output folder structure of regression and factor anlaysis

- top-level folder (home of product-names.csv)
- results
- transformed
- correlations
- descriptives
- model parameters
- regression output

- non-transformed
- correlations
- descriptives
- model parameters
- regression output

For factor analysis:

- top-level folder (home of product-names.csv)
- results
- transformed
- correlations
- descriptives
- eigen vectors
- eigen values
- factor analysis output

- non-transformed
- correlations
- descriptives
- eigen vectors
- eigen values
- factor analysis output