Inline software keyboard without input pop up dialog (#2180)

* Initial implementation

* Refactor dynamic text input keys out to facilitate configuration via UI

* Fix code styling

* Add per applet indirect layer handles

* Remove static functions from SoftwareKeyboardRenderer

* Remove inline keyboard reset delay

* Remove inline keyboard V2 responses

* Add inline keyboard soft-lock recovering

* Add comments

* Forward accept and cancel key names to the keyboard and add soft-lock prevention line

* Add dummy window to handle paste events

* Rework inline keyboard state machine and graphics

* Implement IHostUiHandler interfaces on headless WindowBase class

* Add inline keyboard assets

* Fix coding style

* Fix coding style

* Change mode cycling shortcut to F6

* Fix invalid calc size error in games using extended calc

* Remove unnecessary namespaces

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