Gowitness should raise DOM as HTTP_RESPONSE

[TheTechromancer]

[TheTechromancer]

Upstream issue opened here: sensepost/gowitness#190. We are waiting to implement this until we can get content of the network logs as well.

Gowitness module TODO:

• Raise HTTP_RESPONSE for final rendered DOM
• Raise HTTP_RESPONSE for each network request
• Include perception hash in WEBSCREENSHOT event data

[leonjza]

v3 will have this soon™