Post process schema

[cherylking]

Fixes #186

This PR updates the default cached schema to remove the anyAttribute from elements without extraProperties. It also does the same post processing on generated schema files for local Liberty installations and Liberty running in containers.

Here is the before (no diagnostic on the bogus attribute):

And the after:

[cherylking]

Since git won't show the diff for the xsd file, I am including a couple screenshots of a diff in VS Code. You can see it is a lot of formatting differences and explicit end elements instead of /> on the element itself. The second screenshot shows an example of the anyAttribute removal.