Move API-agnostic pipeline state wrapper into core interface

* There's no need for this to be in the UI, and moving it allows it to be used
  from script which is very useful.

docs/python_api/renderdoc/pipelines/common.rst

@@ -0,0 +1,79 @@
+Common Pipeline State Abstraction
+=================================
+
+.. currentmodule:: renderdoc
+
+.. autoclass:: PipeState
+  :members:
+  :undoc-members:
+
+Viewport
+--------
+
+.. autoclass:: renderdoc.Viewport
+  :members:
+  :undoc-members:
+
+Scissor
+-------
+
+.. autoclass:: renderdoc.Scissor
+  :members:
+  :undoc-members:
+
+BlendEquation
+-------------
+
+.. autoclass:: renderdoc.BlendEquation
+  :members:
+  :undoc-members:
+
+ColorBlend
+----------
+
+.. autoclass:: renderdoc.ColorBlend
+  :members:
+  :undoc-members:
+
+StencilFace
+-----------
+
+.. autoclass:: renderdoc.StencilFace
+  :members:
+  :undoc-members:
+
+BoundResource
+-------------
+
+.. autoclass:: renderdoc.BoundResource
+  :members:
+  :undoc-members:
+
+BoundResourceArray
+------------------
+
+.. autoclass:: renderdoc.BoundResourceArray
+  :members:
+  :undoc-members:
+
+BoundVBuffer
+------------
+
+.. autoclass:: renderdoc.BoundVBuffer
+  :members:
+  :undoc-members:
+
+BoundCBuffer
+------------
+
+.. autoclass:: renderdoc.BoundCBuffer
+  :members:
+  :undoc-members:
+
+VertexInputAttribute
+--------------------
+
+.. autoclass:: renderdoc.VertexInputAttribute
+  :members:
+  :undoc-members:
+  

docs/python_api/renderdoc/pipelines/index.rst

@@ -2,7 +2,10 @@ Pipeline State Objects
 ======================
 
 .. toctree::
+	:maxdepth: 1
+
 	d3d11
 	d3d12
 	gl
 	vulkan
+	common