Close Connection
Add 'close' to EventClient and PollingClient
Uses code from GitHub user vpzomtrrfrt (PR @ https://github.com/scratchyone/wasm-sockets/pull/4)
Add 'close' to EventClient and PollingClient
Uses code from GitHub user vpzomtrrfrt (PR @ https://github.com/scratchyone/wasm-sockets/pull/4)