Master into Develop

See merge request PlayWall/PlayWallDesktop!22

Release/7.3.0

See merge request PlayWall/PlayWallDesktop!21

Master into Develop

See merge request PlayWall/PlayWallDesktop!20

Release 7.2.0

See merge request PlayWall/PlayWallDesktop!19

#191 - Volume trigger for eof not fading correct. Cached volume level war reset to early, eof trigger was call twice

#191 - Use last volume trigger target value as start value for next trigger in the same play session. Cache the last volume change in VolumeTriggerVolumeFilter and reset it on pad ready status

#190 - Add option to mark a pad as "play overlay" to exclude this pad from the "one-pad-mode" play restriction

Fixed #185 -  Remove pad from old page even if new pad is null. Prevent issue of removing wrong pad on multipage move drag & drop action

#183 - Implement playlist start and end trigger, refactor existing playlist triggers, add localization for new playlist trigger points