Pipeline v2 (#258)

* Model class done, pipeline class still needs more visualization stuffs

* Renaming the BaseDataContainer to DataloaderOutputs and adding documentation

* Pushing more documentation, removing some trivial functions

* Updating dict typing

* Removing config dicts for collider

* Passing tests

* Pushing shell new dataloader

* Saving work, need to fix NGP model's get_loss_dict and Pipeline

* V1 of the ngp pipeline should be done. Need train script and debugging

* Updating with latest instant-ngp code

* Syntax updates from latest ngp graph code

* Linter, removing unneeded code in new NGP graph code

* Style

* Should be good now. Linter is happy and the code is verbatum current instant-ngp

* Everything done except novel view testing code

* Fixing some nitpicks

* Debugging dataloader

* merged master

* WOP. integrating pipeline with configs and notebook demo

* removing model folder

* a lot of name changing from Graph to Model

* in progress... changing trainer to use pipeline... broken right now

* pipeline code runs

* switched to val dataset

* makes run_eval.py work

* updated configs for pipeline change

* fixing test_run_train script

* fixing black and linting

* fix docs

* small updates to trainer

Co-authored-by: Jake Austin <jake-austin@berkeley.edu>

docs/reference/api/graphs/modules/ray_losses.rst

@@ -3,6 +3,6 @@
 Ray Losses
 ===================
 
-.. automodule:: nerfactory.graphs.modules.ray_losses
+.. automodule:: nerfactory.models.modules.ray_losses
    :members:
    :show-inheritance:

docs/reference/api/graphs/modules/ray_sampler.rst

@@ -3,6 +3,6 @@
 Ray Sampler
 ===================
 
-.. automodule:: nerfactory.graphs.modules.ray_sampler
+.. automodule:: nerfactory.models.modules.ray_sampler
    :members:
    :show-inheritance: