Use cases for GRUB 2 added to wiki

[chaac]

Hi All,

It seems that I was logged from my lappy to GRUB wiki so I created a page 
having a list of use cases for GRUB 2. I did not add everything there... this 
is where you all come to picture :)

So please add all use cases you think should be supported. Please try to use 
same formatting and if you think there should be more details on one individual 
page please add them there too (and to other pages if you see that fit). Pages 
do not need to include strategy how it will be supported (in the end they will 
have that information).

When we have contents there it is much easier to discuss about those special 
use cases while not forgetting other use cases.

And the direct link to the use case list:
http://grub.enbug.org/UseCases

Thanks,
Vesa Jääskeläinen