Add functionality that DSAccountManager used to provide

[Lazrius]

With the removal of sockets, we have no support for modifying accounts or characters anymore.

I propose we use what we did for the account editing window, the grid style with a filter for finding characters would be ideal.

• Edit any existing field through a UI control (including ones not included in the Schema
• Fields within the schema have dedicated UI controls, while other ones just have an internal field name with a generic edit field (keeping the right types though)
• List of known IP address
• Buttons to do actions on the character (Ban, Delete, Clone, Remove All Equipment, add new cargo, equip item to hardpoint, etc)
• Any action should not be done immediately but be put in a list of actions that are sent when save is confirmed with a popup (schema flexible, choose what best works for you)