function to allow http follow meta redirects, http.GetFollowClientRedirects()

[brenocss]

Please describe your feature request:

Often, we see responses with status code 200 and with the meta tag defining the redirect, if we implement a follow redirect we would increase the number of vulnerabilities found in nuclei. I think we need to override func (c *Client) do(req *Request) (retres *Response, reterr error) and add getMetaRedirect as a fallback method to determine the redirect,

func getMetaRedirect(body string) (redirect_url string, err error) {
	// <meta http-equiv="refresh" content="4; URL='https://google.com/'" />
	doc, err := goquery.NewDocumentFromReader(strings.NewReader(body))
	if err != nil {
		return "", err
	}
	meta := doc.Find("meta[http-equiv='refresh']")
	if meta.Length() == 0 {
		return "", nil
	}
	content := meta.AttrOr("content", "")
	if content == "" {
		return "", nil
	}

	parts := strings.Split(content, ";")
	if len(parts) < 2 {
		return "", nil
	}
	// get url
	for _, part := range parts {
		// use regex case insensitve to search for url part
		if strings.Contains(strings.ToLower(part), "url=") {
			// trim url part with regex
			url := part[6 : len(part)-1]
			return url, nil
		}
	}
	return "", nil
}

Describe the use case of this feature:

Follow meta redirects like burp suite