Davbowman#276

[davbowman]

Pull Request (PR) description:
Adding the IIS 8.5 Site 1.6 STIG
This Pull Request (PR) fixes the following issues:

This fixes #276

Task list:

• Change details added to Unreleased section of README.md (Not required for Convert modules)?
• Added/updated documentation, comment-based help and descriptions where appropriate?
• Examples appropriately updated?
• New/changed code adheres to Style Guidelines?
• Unit and (optional) Integration tests created/updated where possible?

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This change is 

[erjenkin]

Reviewed 4 of 4 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved

[codecov-io]

Codecov Report

Merging #293 into 3.0.0.0 will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           3.0.0.0     #293   +/-   ##
========================================
  Coverage    66.84%   66.84%           
========================================
  Files           15       15           
  Lines          184      184           
  Branches         3        3           
========================================
  Hits           123      123           
  Misses          58       58           
  Partials         3        3

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