Refactor

[danalex97]

• Removed channels and replaced them with proxy processing.
• Replaced Mutex with RWMutex in Overlay.

[coveralls]

Pull Request Test Coverage Report for Build 131

• 81 of 106 (76.42%) changed or added relevant lines in 9 files are covered.
• 14 unchanged lines in 4 files lost coverage.
• Overall coverage increased (+0.2%) to 69.95%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
sdk/go/torrent_simulation.go	0	1	0.0%
overlay/bridge.go	35	36	97.22%
sdk/go/dht_simulation.go	0	6	0.0%
capacity/latencyEngine.go	0	8	0.0%
events/proxy.go	6	15	40.0%
<!--	Total:	81	106	76.42%	-->

Files with Coverage Reduction	New Missed Lines	%
overlay/bridge.go	1	96.77%
capacity/latencyEngine.go	1	0.0%
events/simulation.go	2	38.1%
underlay/router.go	10	84.68%
<!--	Total:	14		-->

Totals
Change from base Build 129:	0.2%
Covered Lines:	1115
Relevant Lines:	1594

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💛 - Coveralls