mip start in HiGHS_CMD and SCIP_PY
GUROBI solver with environment handling
added COPT solver
added gurobi, highs, xpress, copt to github actions
cbc arm binary
fixes to SCIPS
took out deprecations in arguments
mip start in HiGHS_CMD and SCIP_PY
GUROBI solver with environment handling
added COPT solver
added gurobi, highs, xpress, copt to github actions
cbc arm binary
fixes to SCIPS
took out deprecations in arguments