cmake: Added custom NSIS templates

* Unused "gnuradio Desktop icon" option removed
* GNU Radio Companion can now be accessed from the Start Menu
blocks: fix file meta data source to handle repeat of files.
runtime: converting runtime core to gr namespace, gnuradio include dir.
runtime: fix include location
analog: update include dir to gnuradio/analog
audio: moved include dir to gnuradio/audio
channels: moved include dir to gnuradio/channels
comedi: moved include dir to gnuradio/comedi
digital: moved include dir to gnuradio/digital
fcd: moved include dir to gnuradio/fcd
fec: moved include dir to gnuradio/fec
fft: moved include dir to gnuradio/fft
filter: moved include dir to gnuradio/filter
noaa: move include dir to gnuradio/noaa
pager: moved include dir to gnuradio/pager
wip, gr-qtgui not compiling
qtgui: fixed include location for moc of .ui file.
runtime: stopped outputting logger configuration message.
trellis: moved include dir to gnuradio/trellis
uhd: moved include dir to gnuradio/uhd