Mdm::Host#address IPv4 CIDR, Range, and address search

[MSP-10033](https://jira.tor.rapid7.com/secure/RapidBoard.jspa?rapidView=84&selectedIssue=MSP-10033)

Search `Mdm::Host#address` using the `address` operator, which can searching using the CIDR (address/prefix_length), Range (address-address) or single address format.
[Metasploit::Model::Search::Operator::Single#type on rubydoc.info](http://rubydoc.info/gems/metasploit-model/Metasploit/Model/Search/Operator/Single:type)  [Metasploit::Model::Search::Operator::Single#type on github](https://github.com/rapid7/metasploit-model/blob/e46160384754ebc1a6778ad6432f03bd495df454/app/models/metasploit/model/search/operator/single.rb#L56-L64)