* Added a context menu on the buttons including Clear & Restore Default
* Allow clearing (unsetting) inputs. Added a Clear All button
* Allow restoring a single input to default (instead of all)
Previously, once you change language, the texts in the buttons in the Input tab will disappear. It is because the default text in the buttons are empty, and we did not update the text after translations are reloaded, aka texts are reset. This commit fixed the issue.
* Add infrastructure to poll joystick input and get ParamPackages
* Generalize the callbacks in configure_input.cpp and add buttons for analog sticks
* Use the polling classes in the input dialog
* Fix includes
* Formatting fix
* Include real header instead of forward declaring, to fix compiler error
* Split up pair and add deadzone for joystick configuration
* Pass ParamPackages by reference to callback
* fix formatting
* getPollers -> GetPollers
* Add forward declarations and simplify code a bit
* Update joysticks before opening them
* Fix mixup between joystick IDs and device indices
