split example configspace to submodule

[Juri Grabowski]

Hello together,

maybe it's a good idea to split example configspace to a git submodule
project. If we have examle/simple as extra git repo it would be possible
to install DEMO installs from uptodate git repo with livecd or netboot
with squashfs. 
I'm filter it for me sometimes for DEMO install from git:
git clone https://github.com/faiproject/fai.git
git filter-branch -f --prune-empty --subdirectory-filter examples/simple/ -- --all

I can implement this for debian package builds , if it would be
approved.

Best Regards,
Juri Grabowski

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