I've added elevation on text overlay, changed all images from JPG to PNG in order to preserve whole resolution and added code to remove map image for overlay.

I've added piece of code to invert Meteor M2 images from nighttime pases (APID68 from IR sensor) so that clouds appear white and not black, text overlay (satellite name, timestamp and elevation) on Meteor M2 images like NOAA have, and deleting all intermediate images.

(cherry picked from commit 72f43265b5)
Signed-off-by: Nico Rey <rey.nico@gmail.com>

Fixing bad syntax condition in SH

Setup bias-tee during install

Toggle audio save