Automatic JS Conversion

[daogrady]

Stacked on top of https://github.com/SAP-samples/cap-sflight/tree/typescript

Adds a script to automatically convert the TS example into a JS example that should differ as little as possible from the original source. The plan is to have a process in place to have both a TS, as well as a JS version, but only actively maintain the TS version and automatically derive the JS version from it.

[cla-assistant[bot]]

All committers have signed the CLA.

[chgeo]

Cool, thanks! Will discuss this w/ SFlight people.

[chgeo]

@daogrady you need to sign the CLA...

[daogrady]

Will do, but this is still a draft. Please don't merge yet.