Add enforce_role_position to role options

[Kyzegs]

The problem

Other bot creators that I know and I have run into the issue where the bot could not assign or edit a role above the bot's top role. Most robust bots will have an error message telling the user that this is impossible. The problem is that the user would need to retype the command, which could be quite an annoyance.

Solution

I'd love to have a way to enforce the role position of the bot. Meaning, if a user tries to pass a role with a higher position than the top bot role, it'll not allow them to submit it. Functionality would look a bit like channel_types, min_value, and max_value.

Implementation

How the payload would look like:

{
    "name": "giverole",
    "type": 1,
    "description": "Assign a role to someone",
    "options": [
        {
            "name": "user",
            "description": "The user to assign the role to",
            "type": 6,
            "required": true,
        },
        {
            "name": "role",
            "description": "The role to assign",
            "type": 8,
            "required": true,
            "enforce_role_position": true,
        }
    ]
}

[GamingGeek]

Would be nice to also have an option to exclude managed roles 👍