Update parameter files

frustmag/params/.gitignore

frustmag/params/kagome.ini

frustmag/params/kagome_hot.ini

gauge/params/D2h-cycle.ini

gauge/params/D2h-grid.ini

gauge/params/D2h-phase-diagram.ini

gauge/params/D3h-phase-diagram.rank2.ini

gauge/params/D3h-phase-diagram.rank3.ini

gauge/params/Dinfh-hyperplane.ini

gauge/params/Oh-hyperplane.ini

gauge/params/Td-cycle.ini

gauge/params/Td-hyperplane.ini

gauge/params/Th-hyperplane.ini

ising/params/ising.ini