Update to use template files

[johlju]

Pull Request (PR) description

• Update appveyor.yml to use the default template.
• Added default template files .gitattributes, and .gitignore, and
  .vscode folder.

This Pull Request (PR) fixes the following issues

Task list

• Added an entry under the Unreleased section of the change log in the README.md.
  Entry should say what was changed, and how that affects users (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 Resource Testing Guidelines.
• Integration tests added/updated (where possible). See DSC Resource Testing Guidelines.
• New/changed code adheres to DSC Resource Style Guidelines and Best Practices.

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This change is 

[codecov-io]

Codecov Report

Merging #229 into dev will not change coverage.
The diff coverage is n/a.

@@         Coverage Diff         @@
##            dev   #229   +/-   ##
===================================
  Coverage    82%    82%           
===================================
  Files        15     15           
  Lines      1333   1333           
  Branches     10     10           
===================================
  Hits       1106   1106           
  Misses      217    217           
  Partials     10     10

[johlju]

Reviewed 6 of 6 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved