Add prismjs additional languages

[fdmmarshall]

This PR is for the configuration of additional language support for prism.js (code block language highlighting). The additional languages added were http, sparql, turtle, and clojure. These additions live in the docusaurus.config.js file. In the future we might want to add curl, but for now we are using bash as a substitute. If we do decide to use curl we will need to configure a language definition file per the directions found here, a reference to how prism.js configures their language definitions can be found here.

One important issue to note is that when adding a new language that is not prepackaged in prism-react-renderer, but supported in prism.js, you need to run cat node_modules/prismjs/components/prism-LANGUAGE_HERE.js then double check that the language does or does not extend another language, if it does then you must place both into the additionalLanguages array.

Please reference this github issue for context

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