Add implicitron to readthedocs

Summary: Try to document implicitron. Most of this is autogenerated.

Reviewed By: shapovalov

Differential Revision: D40623742

fbshipit-source-id: 453508277903b7d987b1703656ba1ee09bc2c570

docs/modules/implicitron/tools.rst

+pytorch3d.implicitron.tools
+===========================
+
+Tools for implicitron
+
+.. automodule:: pytorch3d.implicitron.tools.camera_utils
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. automodule:: pytorch3d.implicitron.tools.circle_fitting
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. automodule:: pytorch3d.implicitron.tools.config
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. automodule:: pytorch3d.implicitron.tools.eval_video_trajectory
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. automodule:: pytorch3d.implicitron.tools.image_utils
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. automodule:: pytorch3d.implicitron.tools.metric_utils
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. automodule:: pytorch3d.implicitron.tools.model_io
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. automodule:: pytorch3d.implicitron.tools.point_cloud_utils
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. automodule:: pytorch3d.implicitron.tools.rasterize_mc
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. automodule:: pytorch3d.implicitron.tools.stats
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. automodule:: pytorch3d.implicitron.tools.video_writer
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. automodule:: pytorch3d.implicitron.tools.vis_utils
+    :members:
+    :undoc-members:
+    :show-inheritance:

docs/modules/index.rst

@@ -13,3 +13,4 @@ API Documentation
     datasets
     common
     vis
+    implicitron/index

docs/requirements.txt

@@ -9,3 +9,4 @@ iopath
 fvcore
 https://download.pytorch.org/whl/cpu/torchvision-0.8.2%2Bcpu-cp37-cp37m-linux_x86_64.whl
 https://download.pytorch.org/whl/cpu/torch-1.7.1%2Bcpu-cp37-cp37m-linux_x86_64.whl
+omegaconf