Enhance output folder arcitecture with an intermediate folder level

[marota]

When we generete the output folder in manual mode, it would be good to have a specific parent folder for each run we launch. The folder name should have:

• the dataset/environment name
• the line ID on which we run it
• the timestep at which we run it

[NMegel]

Done in commit 2828f1af56369f758afbcc76df639fbdfbf98d8a You can check an example of the output structure in the repo https://github.com/marota/ExpertOp4Grid/tree/master/alphaDeesp/ressources/output I added the chronic scenario name in path

[NMegel]

Makes sense ;) done in commit 46396aa5614653c2127c12796b80d61a07a17aa4