Updated virial app to calculate alot more values. Also implemented some
default samples and redisigned the sampler class a little. Lots of
smaller cosmetic fixes where I couldnt stand the current ones.
stashing hfQMC work.
continued working on making hf orbitals work in QMC.
Merge branch 'hfQMC' of github.com:jorgehog/QMC2 into hfQMC