DhcpServerExclusionRange: New resource

[aromano2]

Pull Request (PR) description

Adding DhcpServerExclusionRange resource. Allows you to define an exclusion range for a specific scope.

This Pull Request (PR) fixes the following issues

• Fixes #7

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).
• [x] Resource documentation added/updated in README.md.
• [x] Resource parameter descriptions added/updated in README.md, schema.mof and comment-based help.
• [x] Comment-based help added/updated.
• [x] Localization strings added/updated in all localization files as appropriate.
• [x] Examples appropriately added/updated.
• [x] Unit tests added/updated. See DSC Resource Testing Guidelines.
• [x] Integration tests added/updated (where possible). See DSC Resource Testing Guidelines.
• [x] New/changed code adheres to DSC Resource Style Guidelines and Best Practices.

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This change is 

[codecov-io]

Codecov Report

Merging #53 into dev will decrease coverage by 3.73%. The diff coverage is 7.27%.

@@            Coverage Diff             @@
##              dev      #53      +/-   ##
==========================================
- Coverage   74.97%   71.24%   -3.74%     
==========================================
  Files          13       14       +1     
  Lines         943      998      +55     
  Branches        4        4              
==========================================
+ Hits          707      711       +4     
- Misses        232      283      +51     
  Partials        4        4

Impacted Files	Coverage Δ
...rExclusionRange/MSFT_DhcpServerExclusionRange.psm1	7.27% <7.27%> (ø)

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[stale[bot]]

Labeling this pull request (PR) as abandoned since it has gone 14 days or more since the last update. An abandoned PR can be continued by another contributor. The abandoned label will be removed if work on this PR is taken up again.

[aromano2]

bump