Updated .gitignore

To ignore the elm_dependencies directory
Added elm_dependencies.json
Added jcollard/generator
Simple test of person randomization
Added Randomize.elm
Moved randomization out to Randomize.elm
Added normal distribution, bool, and sex functions
Added normal'

Which lets you specify mean and standard deviation
Finished adding Person randomizations
Cleaned up Randomize.elm
Randomized the initial person