geosimplify-js polyline simplification library

Based on https://github.com/mourner/simplify-js, geosimplify-js fixes the problem that the simple pythagorean measure used in simplify-js changes size if you simply give it longitude/latitude sequences to simplify.

Used in the QML plugin of Qt Location.

The sources can be found in qt5/qtlocation/src/3rdparty/geosimplify.js.

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Copyright (c) 2017 Daniel Patterson

geosimplify-js License.

Qt port of geosimplify.js, https://github.com/mapbox/geosimplify-js

Copyright (c) 2017, Daniel Patterson
All rights reserved.

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   1. Redistributions of source code must retain the above copyright notice, this list of
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   2. Redistributions in binary form must reproduce the above copyright notice, this list
      of conditions and the following disclaimer in the documentation and/or other materials
      provided with the distribution.

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Based on simplify-js by Vladimir Agafonkin - http://mourner.github.io/simplify-js/

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