create-app package needs a little refactoring.

[rikrose]

sonicjs/packages/create-app/src/cli.js

Line 252 in 2250de9

includeExample: flags.skipExample ? false : (flags.includeExample ? true : (answers.includeExample !== undefined ? answers.includeExample : true)),

There are too many variables all tracking the same thing. There should be a single source of truth.