new feature:colmap support #21
Description
Hi, I would like to use colmap instead of OpenMVG for SFM operations so that I can benefit from using the GPU and multi-threading support for faster processing. To achieve this, I added some code into the pipeline.py file to enable colmap. Now, I'm wondering if it would make sense to merge these changes into your repository. If you believe this feature would be useful for other users as well, I'd be willing to create a pull request.