Update basic packages and testing packages

[unprofessional]

Y'all know what this is about. No JIRA ticket for this.

Bunch of various things needed fixing beyond the package updates, so I've included them here just because:

• Updated istanbul to nyc since the former is deprecated (with a security vulnerability warning in a child package)
• Updated mocha so had to include a useUnifiedTopology flag in the default connection
• Updated package.json with contributors (incomplete -- feel free to add the others who I couldn't find emails for)
• Check if test file exists and delete if so (previously we weren't which was causing failing tests on subsequent test runs)
• Made yarn test:coverage and yarn test:check-coverage work (previously they failed to call yarn pretest properly)

SECURITY VULNERABILITIES RESOLVED:
For the record, you can check what child packages belong to parent packages by doing npm ls ${childPackage}

• Updated mongoose
• Removed the explicit debug since we weren't using it (nor was nyc using it)
• Switching to current nyc has an updated handlebars thereby satisfying the version requirement
• Updated eslint
• Updating mocha satisfies version requirement for diff
• Updating eslint-watch satisfies version requirement for braces
• Updating commitizen, mocha, coveralls, and adding nyc satisfied version requirements for js-yaml
• Updating coveralls satisfies version requirement for tunnel-agent
• fstream removed (was a child of one of the packages I removed)
• Vulnerable child version of tar removed (was a child of one of the packages I removed) -- current child from bcrypt is well above the minimum required version (min req: 2.2.2, current remaining: 4.4.10)
• Updating express-validation satisfied child version of lodash
  • TODO: Must update express-winston, but moving from v2 to v4 requires a Winston migration
  • WARNING: Current commitizen version has child version of lodash at 4.17.14 which puts it under the required version 4.17.15 -- look into using an alternative (which is another migration)
• WARNING: Current supertest version has child version of extend at 3.0.0 which puts it under the required version 3.0.2 -- consider only using supertest-as-promised instead or simply request
• Updating commitizen satisfies minimum required version for merge

Extraneous (not sure what to do about these...):

• stringstream
• is-my-json-valid

[Perry5]

Hmm, I don't remember this PR. Haven't done work on telescoper in a while

[unprofessional]

@Perry5 I just did it over the weekend for fun (and also because it needed it).