Auto-export/bootstrap Groovy scripts as files in separate initialize items

When creating a new Groovy Script, with auto-export on, you will get a new registry.xml file with the script there as a property of type "hipposys:script" and all the code as its value.
Instead, it could populate the property from a file, which would make it more readable and maintainable, as follows:

<sv:property sv:name="myns:myproperty" sv:type="String">
<sv:value esv:file="/path/to/file.txt" />
</sv:property>