Add experemental implementation of GiTemplate
Add experemental implementation of GiTemplate

GiTemplate is faster parser and manager for Agile Toolkit templates.
It's by about 40% faster than SMLite and relies on regular expressions
when processing templates.

It does not handle all cases well enough, howewver.

svisystem/atk4,atk4/atk4,samratcis/atk4,xepan/atk4,atk4/atk4,xepan/atk4,xepan/atk4,svisystem/atk4,atk4/atk4,samratcis/atk4,svisystem/atk4,atk4/atk4,samratcis/atk4