Reform enforced rotation working data

Reform enforced rotation working data

runner now holds responsibility for this object, not inputrec. We need
this separation as a precursor for various modularization efforts. The
input parameters are now referred to from that object, as a precursor
to forming a proper class and module.

The working data for each rotation group now contains a handle to the
const input data for each rotation group, rather than the other way
around. It also contains its index within the set of rotation
groups. These permit more const correctness, more range-based for
loops, and fewer parameters passed. This will let us evolve a class
to handle each group and/or type of rotation.

A vec field in the inputrec is now called inputVec. Formerly , it
handled both the user input and the normalized form used during the
work of the module, which no longer occurs. The name change makes it
clear that there are no remaining inadvertent uses of the field in the
input data.

The ind_loc field is now a proper deep copy of the ind field, because
they contain different data. This can be superseded by the
LocalAtomSet approach.

Some additional const correctness and reduced scope of iteration
variables.

Change-Id: Ic03919f68cc121eed9ebba58f887f18e5d1d8720