Node Help Images and Dynamo Files Update

[dnenov]

Purpose

The goal of this PR is to update the image files used to provide helpful information via the Documentation Browser to the latest design guidelines of Dynamo as of the current patch 2.17. The PR also introduces the Dynamo example files associated with most of the Node help files.

Generating the images was automated using the ExportSampleImagesViewExtension and from the dynamo files also included with this PR. The Example dynamo files were taken from the EXAMPLE folder of the Dynamo Dictionary repository located here. The images were matched to the markdown files inside the NodeHelpFiles. A number (60) of new Example files were manually created and added to this PR. There is still a discrepancy in the number of help markdown files and dynamo example files.

Declarations

Check these if you believe they are true

• The codebase is in a better state after this PR
• Is documented according to the standards
• The level of testing this PR includes is appropriate
• User facing strings, if any, are extracted into *.resx files
• All tests pass using the self-service CI.
• Snapshot of UI changes, if any.
• Changes to the API follow Semantic Versioning and are documented in the API Changes document.
• This PR modifies some build requirements and the readme is updated

Release Notes

• updated Images to Node Help files to reflect the current state of Dynamo design (patch 2.17)
• added Dynamo Example graph files (.dyn)

Reviewers

@reddyashish

FYIs

@QilongTang