Support for mouse buttons hotkeys

[Mr-Bajs]

Preliminary checks

• I've checked that there aren't other open issues on the same topic.

Describe the problem requiring a solution

It would be great if the Hot Keys also enabled the extra buttons that often are enabled on mouses.

Describe the possible solution

Being able to use scrolwheell click to skip to next turn, or using the back and forward buttons scroll between castles and/or heroes.

Additional info

No response

[ihhub]

Hi @Mr-Bajs , it won't be intuitive to allow changing left and right mouse buttons but it is feasible to do for wheel click for instance. However, the current code expects only keyboard's input. We will need to expand this functionality first.

[LeHerosInconnu]

Can perhaps take this request into account: #9073.