Pre-final changes to atomic wavefunction code
- Code for atomic wavefunction calculation collected into module atwfc_mod.f90
- Module uspp_data.f90 no longer used, deleted
- For now no algorithmic changes, just moving code around, but ...
- ... pw2wannier, XSpectra, QEHeat were using variables from uspp_data that are now locally defined: BEWARE SIDE EFFECTS