feat: add multi objective; NSGA

chore: make library out of eoa_lib

chore: move env to codes/eoa_lib

refactor: properly handle errors in local_search

feat: add simple plotting of local search

feat: add RandomDistributionPerturbation

For vectors of reals, perturb by a random distribution with
expectation in 0.

chore: add nalgebra

Initial commit