#116 Fix failing create review function

[jkarenzi]

what does this PR do?

• This PR fixes the error in the create review function. It was failing because there was no validation

Description of the task to be completed

• Add validation in the create review function, before processing the request body
• Update swagger documentation
• Write tests to cover added lines

How can this be manually tested?

• By making requests to the endpoint

What are the relevant pivotal trackers?

• Fix error in create review route #116

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.77%. Comparing base (1b0a766) to head (9b8f6ad).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #117      +/-   ##
===========================================
+ Coverage    90.72%   90.77%   +0.05%     
===========================================
  Files           46       47       +1     
  Lines         1186     1193       +7     
  Branches       131      132       +1     
===========================================
+ Hits          1076     1083       +7     
  Misses          93       93              
  Partials        17       17              

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[EddyShimwa]

Looks Good!

[wayneleon1]

Look good