chore: remove csvtojson from pjson.files

[mshanemc]

forcedotcom/cli#2058
@W-13029145@

background

this plugin's original authors, bless their hearts, copy-pasted csvtojson and included it in files. That relied on certain deps being present, including bluebird, that they provided no way of ensuring. I think that worked ok until toolbelt was removed, and then this started failing during JIT without bluebird.

this PR's changes

• remove csvtojson
• add csv-parse (the one we use in plugin-data) as a normal dep
• change a bit of code in the generate records command to use the new parser

[WillieRuemmele]

QA Notes

not sure of any way to test the JIT-ability of a change while in a PR

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✅ : refresh node_modules, global search for bluebird, no "real" results - a few nested deps have it
✅ : run commands from inside project, they work
✅ : delete node_modules see similar error, yarn install commands work