Add self-configuration ability to bot starting with aliases.json

[invicta-nz]

Experience with a 10 team event has shown that automation is going to be needed for the bot to self-configure for wider use in league. Right now the main file to be modified is aliases.json, but a general system to allow for modifying servers.json as well would be wise to consider.

Requirements:
A process to read current .json files, write backup then write updated files then re-read into memory (or trigger restart of bot)
A set of the following commands to update alias.json file:

• ;add_player_alias {alias} {SteamID}
• ;remove_player_alias {SteamID}
• ;add_team_alias {teamname} {SteamID}, {SteamID}, ....
• ;remove_team_alias {teamname}
• ;add_player_team {teamname} {SteamID}
• ;remove_player_team {teamname} {SteamID}