Categorize environment variables and credential manager based on projects name or Data Type

[durgesh.sharma2]

It will help the developer to easily find the existing Env. variable for reusability.

[PvD_SE]

Multiple suggestions for categorization and improved searching capabilities for Environment Variables (as well as other BP elements) have been made in the past. Please find these proposals and vote for them. 

@BP: Shouldn't this be marked as a duplicate?​