Vggt refactor - split into geometry transformer + multi-view tracker #661

Job	Run time
Unit tests and python checks	2m 2s
Benchmark (megaloc, skydio-8, 15, jpg, wget, colmap-loader, 760, true)	11m 9s
Benchmark (lightglue, skydio-32, 15, jpg, wget, colmap-loader, 760, true)	2m 57s
Benchmark (lightglue, door-12, 15, JPG, test_data, olsson-loader, 1296, true)	2m 45s
Benchmark (sift, skydio-8, 15, jpg, wget, colmap-loader, 760, true)	4m 34s
Benchmark (sift, door-12, 15, JPG, test_data, olsson-loader, 1296, true)	4m 34s
Benchmark (lightglue, skydio-8, 15, jpg, wget, colmap-loader, 760, true)	2m 27s
Benchmark (megaloc, door-12, 15, JPG, test_data, olsson-loader, 1296, true)	3m 25s
Benchmark (sift, skydio-32, 15, jpg, wget, colmap-loader, 760, true)	3m 28s
Benchmark (megaloc, skydio-32, 15, jpg, wget, colmap-loader, 760, true)	3m 42s
Benchmark (sift, palace-fine-arts-281, 15, jpg, wget, olsson-loader, 320, true)	2m 42s
Benchmark (lightglue, south-building-128, 15, jpg, wget, colmap-loader, 760, true)	3m 0s
Benchmark (lightglue, notre-dame-20, 15, jpg, wget, colmap-loader, 760, false)	2m 34s
Benchmark (sift, 2011205_rc3, 15, png, wget, astrovision, 1024, true)	3m 18s
Benchmark (lightglue, gerrard-hall-100, 15, jpg, wget, colmap-loader, 760, true)	4m 51s
Benchmark (sift, gerrard-hall-100, 15, jpg, wget, colmap-loader, 760, true)	4m 40s
Benchmark (lightglue, 2011205_rc3, 15, png, wget, astrovision, 1024, true)	2m 41s
Benchmark (sift, south-building-128, 15, jpg, wget, colmap-loader, 760, true)	3m 27s
	1h 8m 16s

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