Add support for Falcon Resource suffixes

[henryh9n]

Closes #18.

Added support for the Falcon suffixes, using the Flacon's router.
There is no need to specify the suffix manually. The methods for the corresponding Resource, as is done for the path, is fetched automatically in path_helper.

Added tests for 100% coverage.

[codecov-io]

Codecov Report

Merging #19 into master will increase coverage by 0.06%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #19      +/-   ##
==========================================
+ Coverage   97.36%   97.43%   +0.06%     
==========================================
  Files           3        3              
  Lines          38       39       +1     
==========================================
+ Hits           37       38       +1     
  Misses          1        1              

Impacted Files	Coverage Δ
falcon_apispec/falcon_plugin.py	97.22% <100.00%> (+0.07%)	⬆️

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[henryh9n]

@alysivji Any update on this?

[alysivji]

I have 4 hours booked tomorrow to dive into this. It's been a while since I've touched Falcon and I know folks are using this in prod -- want to make sure we don't break anything (especially now there is a v2 of Falcon)

Just taking a quick look at the PR, it does look good. Do you mind updating the README.md with a small section about resource suffixes? No worries if you do not have time, I can add a commit to this branch.

[alysivji]

LGTM.

[alysivji]

👍 this is a lot nicer