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/nerf/test_encoding.py

@@ -0,0 +1,9 @@
+import pytest
+
+
+def test_positional_encoding():
+    assert True
+
+
+def test_lower_case():
+    assert "MATTPORT".lower() == "mattport"