Fix for #457 Collection Name Parameter for create collection

[chughts]

Fix for issue #457 in SDK for Discovery service. Service expects Collection Name for the Create Collection method to be passed in as body.name. The SDK was sending it in as body.collection_name.

Code has been fixed.
JSDoc param has been updated.
Unit Text created.
Integration test has been fixed.

Checklist (Is this checklist for you or for me?)

• npm test passes (tip: npm run autofix can correct most style issues)
• tests are included
• documentation is changed or added
• link to public docs when adding new a service or new features for an existing service

[CLAassistant]

All committers have signed the CLA.

[nfriedly]

Merged, should be released by CI shortly. Do you know if the old name ever worked, or was this broken from the start?

[chughts]

I think broken from the start.

[nfriedly]

OK, thanks.

Oh, and the checklist is for you, basically a list of things I'll probably ask for if they aren't included.