Implement Red Hat search on new site

[michaelryanmcneill]

We want to ensure our content is searchable across all Red Hat properties. We also want to ensure that our site has a search function that allows for people to find the content that they need. Successful implementation of Red Hat search would include:

• Adding Red Hat's corporate search bar to the site
• Ingesting our articles into the Red Hat corporate search system
• Validating that search results are correctly displayed on page.

Depending on the timing of these items, we may want to enable hugo's static search as an interim measure.

[michaelryanmcneill]

(Kind of) Implemented in #863. Not Red Hat's corporate search, but at least a search provider.