Refactoring of RevitToProtoFace work
Merge branch 'master' of https://github.com/DynamoDS/Dynamo
Componentize RevitToProtoFace by creating SurfaceExtractor, SurfaceTrimmer, TrimValidator, surface extraction methods for every type of Face except HermiteFace
Convert Revit HermiteFace into Proto NurbsSurface
Merge branch 'master' of https://github.com/DynamoDS/Dynamo
Various tweaks to RevitToProtoFace code