first v2 commit;

split `cure.lua` into `cure.server.lua` and `cure.client.lua`;
handshake re-implemented using RemoteFunction;
script objects no longer handled, for now;
subdirectories in script, package, and native folders are now detected;
removed global reference to cure object;
added fetch argument to require
removed dependency on settings
formatted package docs
added back cure global variable (server only)
updated README with some corrections
simplified conversion of value files
updated spawner package
removed settings package
started new implementation of network library