Allow (Contact Card) .vcf files to be uploaded to Document Manager

Please allow for the uploading of .vcf (contact card) files to the document center so they can be attached to the first email of a drip campaign.  This would allow me to easily be entered in their contacts and include all of the emails, phone numbers, etc. that I use without having to explain that to the user. (i.e. Text-To-Cell vs. Cell Phone)

This would REALLY help with spam issues many are having, even though there are other ways to solve that.