Update lcd4linux
- support weather display.
- separate lcd4linux and lcd4linuxsupport.
- png-util, fix & cleanup.
- [DH] meta-openvuplus/recipes-vuplus/duo2lcd4linux/duo2lcd4linux_0.1.bb
- [DH] meta-openvuplus/recipes-vuplus/duo2lcd4linux/files/LCD4linux.tar.gz
- [DH] meta-openvuplus/recipes-vuplus/duo2lcd4linux/files/duo2lcd4linux.patch
- [DH] meta-openvuplus/recipes-vuplus/duo2lcd4linux/files/wetter.tar.gz
- [DH] meta-openvuplus/recipes-vuplus/duo2lcd4linux/lcd4linuxsupport/plugin.py
- [DH] meta-openvuplus/recipes-vuplus/duo2lcd4linux/lcd4linuxsupport_0.1.bb