issue-39: Create updated toolbox package

[wiitt]

Fixes #39
This PR creates an updated toolbox package. Also, it moves docs so they are in scope of toolbox.

If packaging the toolbox has been made correctly, FileExchange needs to be updated (I guess we might need to trigger release).

[spencerwplovie]

The Current Maintainer(s) section here should probably be updated. Ze no longer works at ONC, so I'd move their name to the Past Contributors section. I'd keep Angela's name here, she overlooks API development in general.

I'm not sure who will be picking up maintaining the Matlab client library in the future though. Possibly the next intermediate/senior scientific programmer.

[spencerwplovie]

Looks like a list of maintainers is also mentioned in: https://github.com/OceanNetworksCanada/api-matlab-client/blob/main/README.md

[spencerwplovie]

In a separate ticket/changeset, it might also be worth updating the Contributing markdown file as well: https://github.com/OceanNetworksCanada/api-matlab-client/blob/main/CONTRIBUTING.md
The first paragraph under the header could be simplified to more closely match what we have in our Python client library: https://github.com/OceanNetworksCanada/api-python-client/blob/main/CONTRIBUTING.md

Also, we do now use GitHub Integration for this repository, so the Overview section should be updated as well. Hmm reading through the new toolkit version process at the bottom, the section about uploading to FileExchange is outdated as well. Should match the steps I added to the CL Release Procedure page in our internal docs. I think that last bit should just be deleted so we don't need to maintain this in two separate spaces - only internal users should have access to the ONC FileExchange account, anyways.

[spencerwplovie]

When you get to the stage of updating the FileExchange, follow the CL Release Procedure page in our internal docs. If it doesn't work as expected, let me know. You'll need to make sure that in step 3.5 the FileExchange is tracking by release; I changed that by accident last time I published and couldn't change it back without making a new release.