Add option for prevalence file across multiple traits

[roskamsh]

No description provided.

[olivierlabayle]

Hello @roskamsh, thank you for working on this! I've noticed you've introduced a prevalence file option, is it necessary for this functionality to live in TMLE.jl? I think a dict is enough and can be passed within the original prevalence parameter as you have already done. File reading can be done in TMLECLI?

[roskamsh]

Hello @roskamsh, thank you for working on this! I've noticed you've introduced a prevalence file option, is it necessary for this functionality to live in TMLE.jl? I think a dict is enough and can be passed within the original prevalence parameter as you have already done. File reading can be done in TMLECLI?

Hi @olivierlabayle! I have implemented this suggested change in TMLE.jl now (see recent commits), and will incorporate the TSV file reading into TMLECLI.jl next (once tests pass)