_scripts/: added unknown-updated, compadre; updated unkown-leslie

Updated _scripts folder for new name

Changed name to kitchensync, built package

Using polynomials for unknown fecundity and survivals

Added make_L1_cpp fxns

Updated unknown leslie methods

Added script that tried to find smoking gun for when method didn't work

Used new methods on known leslie matrix with summary of results at end

small fixes and summaries to known leslie optim sims

created known leslie stan script with needed changes to preamble

Added 1-par scaling stan model, more hyperpars for stan mods

small fix to fit_known_leslie

started adding optim sims for non-simple case

better plots in known leslie simple optim sims

random_survs and random_fecunds return unchanged leslie if sigma <= 0