Modify search algorithm to improve conversion of resources types

[shadycuz]

This should result in better matches when converting a resource from Cloudformation to Terraform. In my limited local testing I was able to match on more resources correctly while not breaking any of the tricky conversions we already test against.

I also fixed a bug where we were not parsing attributes in the Terraform docs correctly because we only checked for one type of markdown list item, when there is a second valid list item possible. It was discussed in #290

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.74%. Comparing base (e22cab6) to head (a84904f).
Report is 11 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #293      +/-   ##
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- Coverage    89.77%   89.74%   -0.04%     
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  Files           16       16              
  Lines         1135     1131       -4     
  Branches       184      182       -2     
===========================================
- Hits          1019     1015       -4     
  Misses          82       82              
  Partials        34       34              

Flag	Coverage Δ
unit	89.74% <100.00%> (-0.04%)	⬇️

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