This milestone will add the basic functionality for Javascript exports to ESCET. We'll end up with an export option that generates an empty html/css/javascript project with only boilerplate code (included and used by all future exports).

We can create only an export option, or also add a tag to ToolDef so that exports are (also) automatically generated when ToolDef is run.

1. Add Javascript option to export menu.
2. Create templates for search/replace.
3. Implement utils classes.
4. Generate empty template/boilerplate Javascript/html project.
5. Add ToolDef tag for export.

Discussed with Dennis/ESCET:

• ToolDef tag for export is basically just an extension (re-use) of the feature added to the export options menu, so minimal effort to add.
• Should also add unit/integration tests that verify the generated Javascript matches a hardcoded example (same is done for Java/C).
• Ideally, we'd find a way to test the outputs of Javascript functions vs Java/C, not needed for v1 though.