Add version detection from Wappalyzers regular expressions

[rverton]

Wappalyzer makes use of appended strings for version detection like here:

        "IIS": {
		"cats": [
			"22"
		],
		"headers": {
			"Server": "IIS(?:/([\\d.]+))?\\;version:\\1"
		},
		"icon": "IIS.png",
		"implies": "Windows Server",
		"website": "http://www.iis.net"
	},

If split this "additiona field" starting from a ;, we can also parse this information.

[rverton]

Basic version detection added in 6b035b2. Not all version methods are added (like the ternary operator), but this should work for most versions. Wappalyzer implementation can be found here: https://github.com/AliasIO/Wappalyzer/blob/master/src/wappalyzer.js#L68