fix(aws-ec2): All SSM WindowsVersion entries (#1977)

Spurred on by Windows Server 2019 being missing as well as Windows
Server 2016 Full English Base I extracted the full list using the blog
post's example command to retreive them all and then filtered and
macroed it into this list.

The tests were using an invalid enum entry that pointed to a Parameter
Store entry which doesn't actually exist - fixed that too.

Author: leepa

packages/@aws-cdk/aws-autoscaling/test/example.images.lit.ts

@@ -2,7 +2,7 @@ import ec2 = require("@aws-cdk/aws-ec2");
 
 /// !show
 // Pick a Windows edition to use
-const windows = new ec2.WindowsImage(ec2.WindowsVersion.WindowsServer2016EnglishNanoBase);
+const windows = new ec2.WindowsImage(ec2.WindowsVersion.WindowsServer2019EnglishFullBase);
 
 // Pick the right Amazon Linux edition. All arguments shown are optional
 // and will default to these values when omitted.