SQLCL - Blob loading from a file

There is a ton of ways having new scripting in sqlcl can help.  One example is a simpler way to load a local file into a BLOB in a column. Prior to this the only options I know of would be to write custom code or move the files to the server and use utl_file or xdb or some combination of things like this. Enter SQLCL and javascript method #1. Here's a simple script which loads a local file