Improve Allowed Values test and add values

[fatbasstard]

Issue #50, if available:

Tweaks and improvements on the Allowed Values:

• Added GlueConnection Connection Input type
• Create separate, specific fixtures for the allowed Values. Every Allowed Value now a correct and incorrect test data
• Made a hotfix in the RecordSet rule along the way. It broke if no RecourceRecords are specified (allowed if an Alias is specifie), discovered this while building the (minimal) test fixtures

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[codecov-io]

Codecov Report

Merging #542 into master will decrease coverage by 0.19%.
The diff coverage is 25%.

@@            Coverage Diff            @@
##           master     #542     +/-   ##
=========================================
- Coverage   84.54%   84.34%   -0.2%     
=========================================
  Files         110      110             
  Lines        5925     5928      +3     
  Branches     1342     1343      +1     
=========================================
- Hits         5009     5000      -9     
- Misses        604      614     +10     
- Partials      312      314      +2

Impacted Files	Coverage Δ
src/cfnlint/rules/resources/route53/RecordSet.py	88.59% <25%> (-2.4%)	⬇️
...cfnlint/rules/resources/properties/AllowedValue.py	83.58% <0%> (-13.44%)	⬇️

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[kddejong]

👍