Initial ray generation and dataset code (#12)

* ray generator and cameras structure progress

* test renames

* added pass

* conflicts

* fixing some black errors

* reformated files

* merged master and .gitignore

* fixing linting

* removing old folder

* removed return False

* pylint fixes

* update

* updates

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tests/structures/test_cameras.py

@@ -0,0 +1,12 @@
+import torch
+
+from mattport.structures.cameras import PinholeCamera
+from mattport.structures.rays import RayBundle, CameraRayBundle
+
+
+def test_pinhole_camera():
+    pinhole_camera = PinholeCamera(cx=400.0, cy=400.0, fx=10.0, fy=10.0)
+    camera_ray_bundle = pinhole_camera.generate_camera_rays()
+    assert isinstance(camera_ray_bundle, CameraRayBundle)
+    assert torch.allclose(camera_ray_bundle.origins[0], torch.tensor([0.0, 0.0, 0.0]))
+    # assert False