[New feature] MTP Web: GPX overlay

[trekviewhq]

Add an augmented reality overlay of the path you took to your sequences.

Here’s a short demo:

https://mtp.trekview.org/sequence/008e50b2-1617-4a0e-944f-039fb0cc24b5/detail?image_key=ZJiS9mgwNRlMLPW5cgLByA&view_mode=original&show_gpx=true&fbclid=IwAR3qbQsdaj30h-n4ZrjQsf1cSlu6stIXRo75YHxyN0jKV2zlTUviZuR8KDk