test: chaotic network tests

[daviddias]

WIP, fixing things as I go

Goals

• script to spawn a node, given a config file, that mounts the echo protocol (like ping)
• spawn 1 node on the main thread with TCP
• spawn 1 node in a separate process
• dial to that node
• write every 1 second
• kill that node, make sure the main thread node continues ok
• spawn 5 nodes in separate process and repeat the above
• spawn 10 nodes and ..
• spawn 20 nodes
• repeat the previous process with WebSockets
• repeat the previous process mixing the two transports