chore: upgrading dependencies (#421)

Fix bug allowing one connection to subscribe twice (#383)

Changed CRDT Set to a Map (#320)

removed private link, replaced by keygen

Added a read rate limiter which allows limiting the read QpS per clie…

…nt (#252)

This can be used in order to protect the broker from misbehaving clients. This PR also changes the previous writeRate to flushRate which is a more appropriate name.

feat: made write rate configurable (#250)

This makes the write rate configurable by adding writeRate to the limit configuration. Write rate allows to rate-limit the underlying socket flushes and greatly (15-20x from our benchmarks) increases the througput of emitter broker. The value is set to a reasonnable 60 write/s per connection. Keep in mind this is not limiting the QpS but merely limiting the amount of syscalls going out to the OS.