Add Downloads package for v1.5.x

Author: ConnectedSystems

Project.toml

@@ -18,6 +18,7 @@ Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
 Distributed = "8ba89e20-285c-5b6f-9357-94700520ee1b"
 Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
+Downloads = "f43a241f-c20a-4ad4-852c-f6b1247861c6"
 GraphPlot = "a2cc645c-3eea-5389-862e-a155d0052231"
 Graphs = "86223c79-3864-5bf0-83f7-82e725a168b6"
 Infiltrator = "5903a43b-9cc3-4c30-8d17-598619ec4e9b"