[eos-toys] Automatize production of toys with different parameters for the linear form factor implementation

[eos-toys] Add script to automatically perform a scan in s of dBR/ds for muons and taus

[eos-toys] Add comparison data from Marzia for tau leptons

[eos-toys] Fix typo

[eos-toys] Use environment variables instead of hardcoded paths

[eos-toys] Move the scripts to make and plot toys to their subfolder