Improved i18n support for the turbo era.

[davetcc]

Two backward compatible changes to i18n.

1. Whenever we are mode "in all plugins to single file", also push all the generated i18n into an additional single file, and surround each language with an ifdef. This provides the same behaviour but much tighter reducing clutter.
2. Create a python script that does the equivalent of the Java code for people who want to use i18n support without needing to round trip through designer. I.E. those using fluent API