implements coefficient reordering for zcas.
still needs to be checked.
set_active assumes coefficient is ordered electrons then positrons; shouldn't need to pass it a coeff matrix.
coefficient now formatted into blocks of closed, active, virtual orbitals right before ZFCI.

enables all of the optional coefficient options to be done directly in striped format.
output of kramers init now properly a striped coefficient.
minor
Merge branch 'master' of https://github.com/shiozaki/BAGEL

# By Toru Shiozaki
# Via Toru Shiozaki
* 'master' of https://github.com/shiozaki/BAGEL:
  deactivated FCI restart job broken
  deactivated FCI restart job broken
  BTAS update to 1e694d89b297d49c6d3ae64698aa0a958d977d37