Create summary method

[wleoncio]

• Create summary() method for permChacko()
• Create summary() method for reduceVector()

Not so sure about what this would contain, but one idea I had is that reduceVector() would show the reduced vectors on each step, squeezed and aligned for better visualization of where the reductions occured.

[wleoncio]

Perhaps weights and number of reductions are not interesting enough to be part of print() and should be in summary() instead, just lke summary.lm() offers more information than print.lm().