Allow mixed external dimensions in tables
Allow mixed external dimensions in tables

This generalizes the pole and residue expressions to include external
scalar dimensions that are not identical. Testing has been minimal so
far, but sensible looking polynomials seem to be produced for all
choices and it is of course still possible to reproduce old
single-correlator results.

Signed-off-by: Connor Behan <89f96a099c47edae2e9c5a371cbf43991ac7aa8c@gmail.com>

cbehan/pycftboot