multistep validation/approval

[SebSept]

Checklist before requesting a review

Please delete options that are not relevant.

• I have read the CONTRIBUTING document.
• I have performed a self-review of my code.
• I have added tests that prove my fix is effective or that my feature works.
• This change requires a documentation update.

Description

• we move the "State" (Minimum validation required) into the dropdown setup; each step can have a different % required
• at install/update, we create a default step named "Validation" and we set the value of a column validation_percent to 100%
• A validation request can be added from the ticket creation form (technician one). We should keep that, and use the default step automatically.
• The dropdown will have a is_default column to preselect the step value in the validation forms and to manage the possible absence of choice (missed scenario, like API for example) (column added, field not yet in forms (not implemented)
• We need to forbid deletion of the last step entry for this dropdown, as we no longer have a global validation percent.

Display-wise:

• we group the validation table in steps (with thead tags)
  (image)
• We add progress bars to represent the advancement against the validation percent required for the step
• granted part is green and placed on the left
• waiting part is orange and placed in the middle
• refused part is red and placed on the right
• we display a goal bar to represent the percentage setup in the step dropdown
• a tooltip will explain the required percentage to validate the step
• Approval status field:
• we remove the text
• we use one icon for each step where a request exists and add a tooltip with the step and the validation status