chore(package): update yargs to version 7.0.2
chore(package): update yargs to version 7.0.2

Closes #200

https://greenkeeper.io/

supremainc/sfmdev,dockerin/mkdocs-material,squidfunk/mkdocs-material,mjames-upc/mkdocs-unidata,dockerin/mkdocs-material,DatanestIO/mkdocs-material,squidfunk/mkdocs-material,mjames-upc/mkdocs-unidata,squidfunk/mkdocs-material,mjames-upc/mkdocs-unidata,supremainc/sfmdev,squidfunk/mkdocs-material,DatanestIO/mkdocs-material,DatanestIO/mkdocs-material,dockerin/mkdocs-material,DatanestIO/mkdocs-material,supremainc/sfmdev,dockerin/mkdocs-material,mjames-upc/mkdocs-unidata,supremainc/sfmdev