Hyperion 2.0.0-alpha.4

Fixed

• Memoryleaks & Coredump, if no Grabber compiled (#724)
• Resolve enable state for v4l and screen capture (#728)
• Enable/Disable loops for components
• Runs now on x86_64 LibreElec (missing libs) (#736)
• Brightness componsation is now visible for configuration (#746)
• Prevent malformed image size for effects with specific led layouts (#746)

Changed

• SIGUSR1/SIGUSR2 implemented again (#725)
• V4L2 width/height/fps options available (#734)
• Swedish translation update