Make config and data allow for optional values

[LachlanCourt]

config.json currently requires all fields to be filled and just be left blank if they are to be disabled. If they are to be disabled, it is cleaner to have them just not be included in the config file at all and have the reader give the necessary variables default values

[LachlanCourt]

This works now, although the guild ID still needs to be defined in both config.json and data.dat even if they are just empty objects. Should be able to start up without any configuration. Will involve granting server administrators high level trusted role permissions, otherwise a server presence started with no config would not be able to do anything