[REQUEST] File Upload Support

[kbots-tech]

Describe the feature.

My bot I'm reworking to use this library sends images and files with embeds specific to command calls, being able to upload/send files a la the discord.py method would be really helpful. Eg:

embed=discord.Embed(title=f"Your Character Sheet for {self.fields[ctx.author.id][0]}", color=0xde2939),
            file=discord.File(output))

if this could be added either as an extension or part of the core library that'd be super helpful.

Code of Conduct

• I agree to follow the contribution requirements.

[i0bs]

This is planned as a core feature as the Web API allow this to work in parallel to attachments.