[triangulation] Failed to insert point

[gdey]

Failed to insert point while triangulation.

https://gist.github.com/gdey/38eca8aea9ae85e5d2c7f8946d89f910

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Possible additional test cases for triangulations:
https://gist.github.com/ear7h/b231f1bf4ff4b3c74555a0c2fb30208d

[ARolek]

@gdey here are 2 more tests cases after I raised the infinite loop catch to 1000

https://gist.github.com/ARolek/aab1537aba931bd7773e379f73d69d33

[ear7h]

@gdey any updates on the mvt encoding failures?