Minor Fixes for Advanced Gesture Profiles — Virtual Touch Screen 2 Steam update #2912011

Fixed some issues with the Advanced Gesture Profile engine and the default profiles: Fixed issue with the advanced gesture profile engine that would allow keys to become stuck in some cases. Adjusted behavior of the "await" action to always stop waiting when the associated gesture is lost, unless the Continue Processing After Gesture End option is enabled. Adjusted the Virtual Mouse and Default Point Gestures profiles to fix an issue where the pointer position would be stuck until activating the middle mouse combo for the first time. Adjusted conditional checks to consider undefined option values to also be considered disabled option values. To determine the difference between undefined and disabled, an explicit check for undefined is required.