Budget new "Information" phase

[iagirre]

Where

• Related Issue: Budget new "Information" phase #2303 (this PR closes Budget new "Information" phase #2303)

What

Add a new phase called "Information", between "Drafting" and "Accepting" phases. This new phase will not have any link, just the information about the money and the dates.

How

• Add a new phase "informating" to PHASE_KINDS (it's called "informating", not "information", to follow the same structure of other phases).
• Add a new scope for that phase to budget and phase models, and functions to check if the budget is in the phase or not.
• If the budget is in informating phase, do not show the heading as links, but as simple text. The map and the heading list links below it have been removed for this phase.

Screenshots

Test

• Add trait :informating to budgets factory.
• Add a new scenario to the budgets index context, where the index wihout links is tested.
• budget and phase model specs have been modified to include the new "Information" phase.

Deployment

There is a migration (explanation in 'Warnings' section).

Warnings

I added a migration to add the column description_informating to budgets (even if it will be deprecated soon) because in this version of master they are being used when creating a new budget and when running dev_seed.