Socials Integration

[Corban-Lee]

Idea: allow users to add their socials from other platforms (example: @username - instagram, @username - twitter) and allow other users to see them through /socials @member in a discord server

specs:
create a command group called "socials"

add commands "get", "set" and "remove"

"get" command:
returns all specified user's socials or just the specified social
params: discord.User, social (enum for the social site such as "instagram", "twitter", etc.)[OPTIONAL]

"set" command:
set a user's socials
params: social (enum for the social site), username (str username or id for social account)

"remove" command:
remove a user's socials
params: social (enum for the social site)

Also add a context menu command "Get Socials" which will act as an alias for "/socials get @user"