Add missing languages to TesterVB

[Hexman768]

Description

• There is at least 1 language option missing from the TesterVB. The TesterVB should have all language options available to click just the same as the Tester CS project. However the options stop at PHP, this means that Lua, JSON, Assembly, and Batch are all missing options from the project.

[Hexman768]

Along with this change, we should include some new sample files for each language. This will be much more helpful to developers to see exactly how the built-in syntax highlighting behavior looks and behaves.