numo_721

### Describe your change: Added two-pass implementation of Connected-Component Labeling algorithm: https://en.wikipedia.org/wiki/Connected-component_labeling * [x] Add an algorithm? * [ ] Fix a bug or typo in an existing algorithm? *...

I've tried running agent as following: `./agent -accept-fingerprint ABCD -bind 0.0.0.0:443` // this is actual cmd string And I've managed to connect my proxy (via connect_agent cmd) to this agent....