Do not report SA1516 for two consecutive single line properties

[FantasyTeddy]

This relaxes SA1516 as suggested in #2441 (comment):

• If two properties are both single line, they do not require a blank line in between.

Since this change makes StyleCop behave less strict, I'm not sure if this behavior should be configurable. Let me know if it should.

Closes #2441

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.39%. Comparing base (f5843ae) to head (e3ba459).
⚠️ Report is 86 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3936      +/-   ##
==========================================
- Coverage   97.44%   97.39%   -0.05%     
==========================================
  Files         926      953      +27     
  Lines      110283   111930    +1647     
  Branches     3319     3367      +48     
==========================================
+ Hits       107467   109018    +1551     
- Misses       1847     1927      +80     
- Partials      969      985      +16     

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.