v0.02

• added windows support
• added coroutines & futures support
• generalised (templated) buffer support
• changed return type: instead of result of parsing just result markers are returned, extraction of result can be done as separate step
• dropped queing support (queuing policy should be implemented at more higher levels)
• dropped subscription support (can be implemented at higher levels)
• dropped internal buffers (can be implemented at higher levels)
• dropped explicit cancellation (socket reference can be passed to connector, and cancellation
  can be done on the socket object outside of the connector)