Add solr config overrides for localhost

[wxactly]

For the PR creator:

Check off the following boxes before asking someone to review this PR.

• [ ] Update the "How to test this branch" instructions below by replacing [the-branch] with the name of this branch, and [the-new-project] with an example project name.

What this PR does:

• [ ] Fill this out.

How to test this branch:

• [ ] If you haven't already, run the One time setup steps
• [ ] Run this:

COMPOSER_MEMORY_LIMIT=-1 terminus build:project:create --team='United Philanthropy Forum' --org='United-Philanthropy-Forum' --visibility='private' --stability=dev "united-philanthropy-forum/km-starter-kit:dev-[the-branch]" [the-new-project]

• [ ] Validate that a new site exists at https://dev-[the-new-project].pantheonsite.io
• [ ] Validate the repo exists at https://github.com/United-Philanthropy-Forum/[the-new-project]
• [ ] Delete the test environment when you're done, by running terminus build:env:obliterate [the-new-project]
• [ ] Once this PR is merged, cut a new tag so the create-project commands will get the latest and greatest.

[mariacha]

Seems fine to me!

[wxactly]

Thanks @mariacha!