major updates to typescript build config

[aciccarello]

• Pulls out the typescript config into a tsconfig.json file
• Adds libraries as node dependencies
• Uses @types packages for type definitions
• Replaces module with namespace
• Fixes strict errors

[Gerrit0]

Looks good! I'm always happy to see strict mode on.

[jonchardy]

Are search and visibility toggles broken by this update? They don't seem to be working for me when I pull these changes down to our project.

It seems to reverse some changes that went with #43 to ensure the components are concatenated in the right order for compilation.

[aciccarello]

@jonchardy I think you may be right about the order being incorrect. We probably should add /// <reference> comments or switch to actual modules so dependencies are explicit.