Make the no_coverart and no_preview images more fanart friendly.

modified:   images/no_coverart.png
new file:   images/no_coverart_with_fanart.png
modified:   images/no_preview.png
new file:   images/no_preview_with_fanart.png
modified:   recordings-ui.xml
modified:   schedule-ui.xml
modified:   video-ui.xml
Set the icon image to honor the preserveaspect ratio.

modified:   images/masks/channelicon-small-mask.png
modified:   images/osd/masks/osd_program_icon_mask.png
modified:   osd.xml
modified:   osd.xml.alt
modified:   schedule-ui.xml
Fix a mistake from commit 28eabeb0b720e7b114d4fd82add12c58c3a5758a.

modified:   osd.xml.alt
Adjust the position of the channel icon in program_info.

modified:   osd.xml
Make the no_banner image more fanart friendly.

modified:   images/no_banner.png
new file:   images/no_banner_with_fanart.png
modified:   schedule-ui.xml
Bumped version to 4.37.

modified:   themeinfo.xml