Is there a location where I can download a complete version of the Image_Mgmt_Workflows tools like OptimizeRasters, MDCS, etc?
I think these can be found on GitHub if this is what you're looking for:
https://github.com/Esri/OptimizeRasters
https://github.com/Esri/mdcs-py
Cody
Thanks @CodyPatterson
Is there a GitHub repo for the Spatial Asset Management Tools?
Have you seen this site: https://esri.github.io/
There is a subpage for each of the different projects there, including Spatial Analysis