[enhancement] more flags to be configurable via a .gulp file

[marcelh-gh]

for example the require flag

[sttk]

@marcelh-gh We are planning to support require flag via .gulp.js (#108), but to do this, it is needed to modify js-liftoff (js-liftoff#93, etc.)

About cwd flag, we have some issues (#109, #146, etc.)

About some of other flags, we will address to support. Do you request any other flags? We'll try it or welcome your PR.

[marcelh-gh]

@sttk great to hear that you are already on it! :-)
I was looking for this to have --require tsconfig-paths/register everytime I run gulp.
Maybe it would be a good idea to do that always, just like you already register ts-node when the gulpfile is written in TypeScript.

[phated]

The flags.require property is now supported in v2.1.0!