AbiathRPC - Remote ADEPS fragment

AbiathRPC level sets can't have all the fancy configuration available to local level sets because there isn't a real ADEPS file to load. For example, there isn't a way to set the number of infoplane tiles, which is kind of a problem because it's different for different episodes. So I added a server configuration option that has it load an ADEPS fragment from a file. When a client connects, it asks for that fragment and if it's found, the connection routine has the core configuration object load that text. Servers can now share these extra properties - e.g. path tile IDs, Level Inspector and Resource Accountant configuration - with clients.