Elementary v0.2.2

The build system was updated, no other changes have been made to elementary.

Elementary v0.2.1

Minor fix to allow 'capture' to be a proper particle pair and tuple identifier.

Elementary v0.2.0

Added a function to resolve a reaction and obtain the residual.

Small changes to how capture is handled.

Elementary v0.1.1

Corrected an issue with elastic scattering. Previously, it was assumed that for elastic scattering the incident particle pair is equal to the outgoing particle pair. This is correct as long as the excited state of the target is the ground state.

Elementary v0.1.0

Initial release