Qt5 now avairable in agl-demo-platfrom.

v3: (Jan-Simon Möller)
- Added meta-ruby to bblayers template file

v2: (Jan-Simon Möller)
- Added meta-qt5 to bblayers template file
- Removed unused patches (rpm specfile)

v1:
Support Qt5 for AGL Demo applications as UI Framework

Qt5 now avairable in agl-demo-platfrom.

This is a initial commit to support Qt5 for GUI Framework
of AGL Distro.

For now, these components are included into agl-demo-platform
as default,

Additional meta data for Qt5 (recipes-qt/qt5/*) is from:
  URL: git://git.projects.genivi.org/meta-genivi-demo
  commit: dc64c97667bac6046c878c689af579089f30641e

To build and install Qt5 examples, need to setup local.conf
properly, see README.md for more detail.

Change-Id: I6c298d4f650a5ac8ee8f12acd1ee28df15e7dfad
Signed-off-by: Tadao Tanikawa <tanikawa.tadao@jp.panasonic.com>
Signed-off-by: Jan-Simon Möller <jsmoeller@linuxfoundation.org>