Support sync BotAction's

[mrWh1te]

Concerned about how most of Puppeteer's Page's methods are async so some dev's may try to await or resolve promises inside sync functions but page.url() is sync, and other BotActions would run faster if ran synchronously such as map() in a Pipe, etc

Concept/Idea
Same method parameters (page: Page, ...injects: any[]), but instead of returning a Promise, it either doesn't return (void) or returns a PipeValue. Therefore, all assembly lines need to check the returned value for something scalar like undefined or a PipeValue, and test it for being a Promise. If a promise, then await it before proceeding further.

As per interfaces, idea is:

interface BotAction<R = void, I extends Array<any> = any[]> extends Function {
  (page: Page, ...injects: I) : Promise<R> | R
}

[mrWh1te]

This would effect a new minor release ie 2.1.0