soeretypo: forms for editing reference data about PRO

§4.1.2
Editing reference data about PRO will be done throw forms
- info (name, code, product type, author, comment)
- raw matters (names, ratio, characteristics, structure)
- treatments (names, total duration, beginning, structure, phases with duration and characteristics)

The product code could be generated automatically using the product type and an autoincrement.

The spreading place must be refined:
- is it only one spreading place for each PRO
- or is it a property of the sampling

The sampling info must be refined:
- synchronization with baseEch
- date
- method (list from ?)
- equipment
- localisation