#260 update client for new scylla

[RChandler234]

Changes

Update client to maintain all old functionality with the new changes to Scylla:

• Transforms list of all datatypes on the graph page to fit the node structure we were using before (I like this a lot better because any weirdness related to nodes/ how we display datatypes is localized to the graph page, so you only have to change it in one place now to change how its's displayed. This way, when/if y'all do the multiple levels of tabs on the graph page, it should be significantly easier/ only involve frontend changes on the graph page)
• Update the DataType enum to include nodes (aka, the dataTypes are basically just topics now)

Clean up the DataType enum file, rename it, and move its file to the src/ folder, so it's not hidden away since we use it in basically all of our custom components that aren't the graph page

Also includes an update to Scylla so that the dependencies play nice on Windows (removes ability to connect to the database over TLS from Scylla, but should be no biggy)

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Closes #260 (issue #)

[RChandler234]

Make sure to update the READMEs before the semester starts so that all the dev setup instructions are gtg and work on all platforms @bracyw, for Scylla and the Client, had some small issues with Scylla when testing this

[jr1221]

tested. 100% works.

[bracyw]

lgtm