feat(options): support CodeBlock's comment

[azu]

Features

• Add checkCodeComment options

Example

{
    "rules": {
        "prh": {
            "checkCodeComment": ["js", "javascript"],
            "rulePaths" :["./prh.yml"]
        }
    }
}

Support CodeBlock's comment // and /*.

   // $ is jquery

Limitation: It just support JavaScript Code, because I don't found any lang comment parser correctly.

fix #38