SecurityPolicyDsc: Updated LICENSE file to match the Microsoft Open Source Team standard. Fixes Issue #108

[timhaintz]

Pull Request (PR) description

In new repositories that are created by the Microsoft Open Source Team, the LICENSE file does not contain the year in the copyright "header".

This Pull Request (PR) fixes the following issues

- Fixes #108 

Task list

• [x] 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 #109 into dev will not change coverage. The diff coverage is n/a.

@@        Coverage Diff         @@
##           dev   #109   +/-   ##
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  Coverage   89%    89%           
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  Files        5      5           
  Lines      493    493           
==================================
  Hits       443    443           
  Misses      50     50

[stale[bot]]

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