Changelog

• Added Fofa source #408 by @Becivells
• Added C99 source #431 by @taythebot
• Added Chinaz source #437 by @yhy0
• Added Request rate-limit support #362 by @taythebot
• Added HTTP Proxy (proxy) support #429 by @taythebot
• Added Bind (b) support to use specfic network #419 by @SamuelCampos78
• Added Random user-agent header to query sources #447 by @taythebot
• Fixed a bug with crtsh source #436 by @karelorigin
• Fixed a bug with recon.dev source #448 by @maldevel
• Fixed a bug with dnsdumpster source #438 by @maldevel
• Fixed spyse source to use v4 API #433 by @scanpatch