Feature/chatbot struct

[Jasonnor]

Features and improvements

• ChatBot package with:
  • Initialize (read config and return chat bot)
  • Login
  • Post message
  • Reply meme
  • HTTP request to Rocket.Chat
  • Some response struct of Rocket.Chat and Google Search
• Simple main example/test
• Config template

Bug fixes and other changes

• Create pull request template for GitHub

[Jasonnor]

LGTM. But need to remove the unnecessary panic.

PANIC