Using as library documentation

[ehsandeep]

Please describe your feature request:

A document including examples to use naabu into go projects + integration test

Describe the use case of this feature:

As a developer, I wanted to integrate naabu into my go project to utilize all the features of naabu.

[nikkhilgoyal]

Want to use passive scan feature of naabu to get open ports.

[Mzack9999]

@nikkhilgoyal Just set Passive to true and provide a callback for OnResult:

options := runner.Options{
	ResumeCfg: &runner.ResumeCfg{},
	Retries:   1,
	Host: "scanme.sh",
	Passive:   true,  // set to true
	OnResult:  func(hr *result.HostResult) {}, // provide a callback
}