Allow data for future dates to be uploaded via data sources

[#1]

currently we can only upload data for dates that have already occured in data sources. I want to upload targets for specific metrics for future dates. This would give me the ability to compare actual performance easily against targets directly in the tool.

[#2]

In addition, please allow setting of props for datasource uploads (not only evars).

[#3]

This should be removed!! My business is begging for this functionality and its so easy if that restriction wasn't on there...

[#4]

We need this!

[#5]

I have created a Feature Request for this feature to be added. This can only be viewed by Adobe Employees. 

[AN-364920] Data Sources: Allow uploading data with Future Dates - Jira

If I get any additional feedback on this I will edit this comment.