databases/datamodeler: update 4.1.5.907 -> 17.4.0.355.2121

• added desktop integration by adding a datamodeler.desktop file

PR: 224802
Submitted by: jjuanino@gmail.com (maintainer)
Relnotes: http://www.oracle.com/technetwork/developer-tools/datamodeler/downloads/dm-relnotes-174-4125878.html