Add RPC support

Need to add support for RPC Client and Server

**Usage could look like this:**

Client:
`const result = await menash.rpc('server-queue-name', { info: "some request" });
`

Server: 
`await menash.activateRpcServer('server-queue-name', (msg: ConsumerMessage) => {
    msg.reply({ info: "my reply" });
})
`

