[UI] Overall object description and help rework

[HugoGenillier]

Object description and help has to be improve to bring more clarity for the user and to greatly ease the user experience.
We can identify 3 elements in the UI that can give user information about objects in score :

• 1 The inspector's description
• 2 The process information
• 3 The tooltip

Inspector's description

The inspector description text also called status tip has to be reworked, completed of modified. This text is used to describe element to the user while working on his project
We'll have to check for setStatusTip() functions :

• The length should be limited so that the text fully displays with default panel size's parameters.
• Also, for processes, this status tip should no longer display the irrelevant name of inputs, outputs but rather the type of inputs or outputs expected like audio for red cable, multimedia for white etc... This will explain the cable system more efficiently.

Process information

This text is used to describe element to the user while searching for elements that he can use for his project.

The structure of this informative piece has to be redifined :

• The order of information pieces should change to display the name followed by the description and then in and out numbers and authors at the end.
• The length should be limited so that the text fully displays with default panel size's parameters.
• Adding direct links to documentation page under a "more info" or "help" clickable link.

Note that some inspector's description and process information have the same description element, for plugin made with avendish for instance.

• For recent processes and plugins made with avendish
  

• For older processes and plugins
  

Tooltip

The tooltip can't be very long but should display the name of the element hovered and the possible shortcuts associated with it between parenthesis, like "Create (C)" even tho this one needs a more explicit name (create... what ?).
To achieve this, we'll have to know every existing shortcuts to be able to indicate them. For most element we'll have to look for setToolTip() function.