Port OSD message control

[yuroyami]

• OSD msgs checkable settings which Syncplay Desktop has and should be ported to Android :

  Include events in your room (this is already happening, on by default, should be disableable on Android)
  Include events from non-operators in managed rooms (off by default on Desktop, not implemented yet on Android)
  Include events from other rooms (off by default on Desktop, not implemented yet on Android)
  Include slowing down / rewinding notifications. (on by default on Desktop, implemented only for rewinding on Android as of yet, as normal msgs)
  Include warnings (on by default, warnings are being cast as normal msgs, should be shown red with their unique color)

[Et0h]

Note: While Syncplay PC notes slowdown due to time difference in notification window, as of 3rd March 2021 it doesn't display speed changes in player osd as its an unnecessary distraction until it gets bad enough for a rewind.

[yuroyami]

Note: While Syncplay PC notes slowdown due to time difference in notification window, as of 3rd March 2021 it doesn't display speed changes in player osd as its an unnecessary distraction until it gets bad enough for a rewind.

So basically that means that whether the option is on or off, the OSD messages are not gonna appear for minor desyncs ?