Add Not categorized item to category list

Add Not categorized item to category list to be able to filter on both
categorized and non categorized items
Add fields en methods read payment info

Add fields for price reduction, payment terms, payment type ...
Get orderlines with complete stock info
Add multi filtering to product list

Add multi filtering to product list
Add product type and category filtering
Add remote product list sorting
New public functions and company logo reading

Add new public functions to read product types, payment methods and
types.
Add base64 data of company logo's
Add jasmine tests for new functions
Version update