SqlServerDsc: Update module to use auto-documentation

[johlju]

Pull Request (PR) description

• SqlServerDsc
  • Update resource parameter documentation (issue SqlServerDsc: Update schema property descriptions with those in README.md #1568).
  • Documentation is now published to the GitHub Wiki.

This Pull Request (PR) fixes the following issues

• Fixes SqlServerDsc: Update schema property descriptions with those in README.md #1568

Task list

• Added an entry to the change log under the Unreleased section of the
  file CHANGELOG.md. Entry should say what was changed and how that
  affects users (if applicable), and reference the issue being resolved
  (if applicable).
• Resource documentation added/updated in README.md.
• Resource parameter descriptions added/updated in README.md, schema.mof
  and comment-based help.
• Comment-based help added/updated.
• Localization strings added/updated in all localization files as appropriate.
• Examples appropriately added/updated.
• Unit tests added/updated. See DSC Community Testing Guidelines.
• Integration tests added/updated (where possible). See DSC Community Testing Guidelines.
• New/changed code adheres to DSC Community Style Guidelines.

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This change is 

[johlju]

Reviewed 35 of 35 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved

[codecov]

Codecov Report

Merging #1573 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #1573   +/-   ##
======================================
  Coverage      98%     98%           
======================================
  Files          37      37           
  Lines        6074    6074           
======================================
  Hits         5970    5970           
  Misses        104     104