vdr: update to vdr-1.7.33
vdr-plugin-streamdev: update to vdr-plugin-streamdev-f58086a
vdr-iptv: build with '-fPIC'
vdr-plugin-dvbapi: build with '-fPIC'
vdr-wirbelscan: build with '-fPIC'
vdr-wirbelscancontrol: build with '-fPIC'
vdr-addon: set vnsiserver as default pvr plugin
Revert "vdr-addon: cleanup. remove live and epgsearch."

This reverts commit 6eb8ce874b5d0cf64c4f0f9d166ef3292bd3bf0d.