Allow outDir and build command for Alexa hosted skill
When using Alexa hosted skill there's no ability to define the
"outDir": "dist" instead a hardcoded index.js is always used. While this isn't a blocker it's not a great experience.
It would be nice to define a build command when the deploy happens for example in package.json under scripts like the following
npm run compile
which would then compile the TypeScript source code in the src directory and output it to the dist directory.