Added a panel to the TreeView to make the three view more useful

[p4p1]

Changed

• removed printf that should have not been uploaded
• new Tree argument to have a panel

  added

  • Tree().setPanel() -> Function to set the text panel to some HTML
  • havoc.CommandGetOutput() -> run a command and get the output

    sample code

    
    import havocui
    import havoc

def selected_tree(data): tree.setPanel("<h1 style=\"color:blue\">Hello %s\n

hello World

" % data) print (data)

tree = havocui.Tree("Active Directory Data", selected_tree, True)

tree.addRow("Users", "me", "you", "us") tree.addRow("Computer", "DC01", "WEB01", "FS01") tree.setPanel("<h1 style=\"color:blue\">HelloWorld\n

hello World

") tree.setBottomTab()

## screenshots
![image](https://github.com/HavocFramework/Havoc/assets/19672114/414841fb-4405-4f05-b873-09d52b410b0a)