Prevent conversion of non-plan OTP responses to POJO

[binh-dam-ibigroup]

Checklist

• Appropriate branch selected (all PRs must first be merged to dev before they can be merged to master)
• Any modified or new methods or classes have helpful JavaDoc and code is thoroughly commented
• The description lists all applicable issues this PR seeks to resolve
• [na] The description lists any configuration setting(s) that differ from the default settings
• All tests and CI builds passing

Description

This PR fixes #73. A new test class and a park_and_ride mock response are added to guard against #73.

[codecov-commenter]

Codecov Report

Merging #74 into dev will decrease coverage by 0.07%.
The diff coverage is 33.33%.

@@             Coverage Diff              @@
##                dev      #74      +/-   ##
============================================
- Coverage     31.94%   31.87%   -0.08%     
+ Complexity      207      203       -4     
============================================
  Files            81       81              
  Lines          2235     2237       +2     
  Branches        251      251              
============================================
- Hits            714      713       -1     
- Misses         1483     1485       +2     
- Partials         38       39       +1     

Impacted Files	Coverage Δ	Complexity Δ
...pplanner/middleware/otp/OtpDispatcherResponse.java	52.17% <33.33%> (-4.97%)	5.00 <1.00> (ø)
...ntripplanner/middleware/otp/response/Response.java	75.00% <0.00%> (-25.00%)	1.00% <0.00%> (-1.00%)
...ntripplanner/middleware/otp/response/TripPlan.java	83.33% <0.00%> (-16.67%)	1.00% <0.00%> (-1.00%)
...opentripplanner/middleware/otp/response/Place.java	30.00% <0.00%> (-10.00%)	3.00% <0.00%> (-1.00%)
...g/opentripplanner/middleware/otp/response/Leg.java	50.00% <0.00%> (-3.34%)	4.00% <0.00%> (-1.00%)
...tripplanner/middleware/otp/response/Itinerary.java	68.75% <0.00%> (-3.13%)	5.00% <0.00%> (-1.00%)
.../opentripplanner/middleware/otp/OtpDispatcher.java	13.79% <0.00%> (+13.79%)	1.00% <0.00%> (+1.00%)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 59c6324...a2a319a. Read the comment docs.

[br648]

One minor typo, but looks good so approving.

[br648]

Typo Exlude: Exclude.

[binh-dam-ibigroup]

Good catch! Thanks.