Associate SSA graphnodes to their final assignment graphnode at codegen

1. Move SSA graphnode association at codegen
2. Remove this functionality from the runtime
Merge pull request #1688 from junmendoza/newMaster

Associate SSA graphnodes to their final assignment graphnode at codegen
Repro for MAGN-3576
Extend Floor to take PolyCurve input
Merge branch 'master' of https://github.com/DynamoDS/Dynamo
Add DynamoLauncher project

Adds a program that allows drag and drop launch of Dynamo on top of
Revit. Adds the ability in DynamoRevit to run a file that is passed from
the journal data.
Add debugger attachment.
MAGN-3489

Fix element query to correctly compare family types.
MAGN-3488

Add ForceReexecute to DSElementSelection to ensure that element
selection nodes reexecute on model changes.
Fix SanityCheck test.
Fix Revit core lacing test.
Updated LibG DLLs to fix MAGN-3548
Add throttling to search.

On some machines (mine included), update of the UI during search had
poor performance. We were conducting multiple searches and multiple UI
layout updates whenever a new key was clicked. I've added a timer to
wait 100ms after the most recent update of the search text to actually
conduct a search and update the UI.
Merge branch 'master' of https://github.com/DynamoDS/Dynamo
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into Migration
Fix regression tests...

Adds another condition to document switching, which points Dynamo at the
active UI document, if its document has been closed.
Fixes regression tests. Parameterized tests now have a test name
matching the folder that they come from and they each own a Dynamo
session.
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into Migration