Added scan name to calls returning CompletedScan

[bglass-r7]

Description

Added an attribute to the CompletedScan class to return scan_name. Updated the parse methods for dyntable and json to pull out the scan name found in the results.

Motivation and Context

With the recent change in Nexpose to assign scan names and sub site schedules, having the ability to filter and lookup scans based on names could prove beneficial.

How Has This Been Tested?

I cloned the current master branch, updated the scan.rb file, built a new gem and ran a test script. The change was rather small to add the attribute to a file.

Screenshots (if appropriate):

N/A

Types of changes

• New feature (non-breaking change which adds functionality)

Checklist:

• I have updated the documentation accordingly (if changes are required).
• I have added tests to cover my changes.
• All new and existing tests passed.

[sgreen-r7]

thanks @bglass-r7 does this need to go out as a part of a specific release?

[bglass-r7]

@sgreen-r7 No specific release. Can sneak it in there if need be. Was just asked how to get the scan name from the API and didn't see it. Plus looked like a very easy update.