Vanilla support for 2-4 player lobbies

[1A3Dev]

• Added LobbyCompatibility as a soft dependency
• Replaced the increased version number with the same method that LobbyCompatibility uses (a lobby tag), this allows the following to happen:
  • Vanilla players can join MoreCompany lobbies if the crew limit is 4 or less (if they are invited or if they search for the "morecompany" tag on the lobby list)
  • MoreCompany players can join vanilla lobbies (if they are invited or if they search for the "none" tag on the lobby list)
• Added a check to ensure that vanilla players can't join when the crew limit is greater than 4
• Lowered minimum crew limit from 4 to 2
• Increased maximum crew limit from 50 to 64

It's probably also worth noting on the README that cosmetics will only sync to other players if the lobby host has MoreCompany.