Add some external access to the RadioReference APIs

[gbowne1]

Here are the RadioReference API's to be used in the Scanner Log functionality. They offer five API's here:

<script language="JavaScript" src="https://api.radioreference.com/js/?key=DOMAIN_KEY&scid=SUBCAT_ID"></script>
<script language="JavaScript" src="https://api.radioreference.com/js/?key=DOMAIN_KEY&sid=SID"></script>
<script language="JavaScript" src="https://api.radioreference.com/js/?key=DOMAIN_KEY&sidalltg=SID"></script>
<script language="JavaScript" src="https://api.radioreference.com/js/?key=DOMAIN_KEY&siteId=SITE_ID"></script>
<script language="JavaScript" src="https://api.radioreference.com/js/?key=DOMAIN_KEY&sites=SID"></script>

[gbowne1]

I am assuming we need an /api/{version}/... for this.