Automatically generate TypeScript description files

[blackfalcon]

Is your feature request related to a problem? Please describe.

More and more users are using the TypeScript framework for their JavaScript needs. Auro is somewhat incompatible with that environment due to its lack of TypeScript definitions.

Describe the solution you'd like

Update the generator to support the automated feature of generating *.d.ts files for TypeScript users.

Additional context

See these issues and commit for more background.

• auro-button: add TypeScript declarations auro-button#189
• Add tsconfig support  auro-header#68
• AlaskaAirlines/auro-header@f4d91f6

Dependency

The following issue(s) need to be completed before this work can be addressed

• export component class by default  #375

Exit criteria

This issue will be closed once the generated component will produce the desired .d.ts file needed for consumers.