Merge pull request #5613 from shahmishal/swift-5.0-images

[Swift] Add Swift 5.0 release images for bionic and xenial.

library/swift

@@ -7,7 +7,15 @@ Maintainers: Ted Kremenek <[email protected]> (@tkremenek),
 GitRepo: https://github.com/apple/swift-docker.git
 
 
-Tags: 4.2.3, 4.2, 4, latest
+Tags: 5.0, 5.0-bionic, bionic, latest
+GitCommit: 0d3ffbb7885c8731970fc294be96ce91153840d9
+Directory: 5.0/ubuntu/18.04
+
+Tags: 5.0-xenial, xenial
+GitCommit: 0d3ffbb7885c8731970fc294be96ce91153840d9
+Directory: 5.0/ubuntu/16.04
+
+Tags: 4.2.3, 4.2, 4
 GitCommit: 75dde01ef86e98437b1206c6a58d0428dfb345a4
 Directory: 4.2/ubuntu/16.04