Adding option url parameters

[b0tting]

This is a PR to add the new parameters for URL based options (basic auth, regex, bearer token etcetera) and solve #144. I suggest using a second level block to group these parameters and prevent clutter in the docs and code. There is no additional validation, ie. you could select basic authentication and add a bearer token at the moment.

@fdevans This code is not working at this time. I think the issue is in jobFromResourceData(:846) with the JobValueChoicesURL object not being a map of strings. My knowledge of Go is very limited and I could not find another component with a similar setup. I hope my groundwork is enough to finish this with little extra effort. If not, feel free to delete this pull request.

[fdevans]

Thanks for the headstart. Hopefully some other members of the community can help improve on the work you've started here. I'll likely do another round of reviews and merges in a few weeks.

[fdevans]

This has been open for a while without traction. Since PR #203 significantly changes the provider I'm going to close this and we can revisit in the new 1.0.0 version after it's fully released.