Edited transform_all.bat to work with vs2019, utilizing vswhere.exe utility.

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Purpose

https://jira.autodesk.com/browse/DYN-2152

AssemblySharedInfo.tt file was not being updated with the latest build no., as the paths for vs were not defined.
Now, by using vswhere tool, vs path is provided irrespective of the version used to build the project.

Declarations

Check these if you believe they are true

• The code base 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.

Reviewers

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FYIs