Cоmplete refactoring of the trackers and data aggregation

[krasi-georgiev]

closes #420
closes #419
closes #249
closes #360
closes #285
closes #227
closes #231
closes #229
closes #164

[coveralls]

Pull Request Test Coverage Report for Build 925344957

• 63 of 791 (7.96%) changed or added relevant lines in 13 files are covered.
• 311 unchanged lines in 8 files lost coverage.
• Overall coverage decreased (-41.04%) to 4.933%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/mining/miningManager.go	0	4	0.0%
pkg/ethereum/mock.go	30	37	81.08%
pkg/mining/miningGroup.go	0	7	0.0%
pkg/reward/reward.go	26	35	74.29%
pkg/ethereum/client.go	0	12	0.0%
pkg/tracker/index/balancer.go	0	15	0.0%
pkg/tracker/gasPrice/gasPrice.go	0	18	0.0%
pkg/config/config.go	0	19	0.0%
pkg/ethereum/ethereum.go	0	25	0.0%
pkg/tracker/index/uniswap.go	0	31	0.0%

Files with Coverage Reduction	New Missed Lines	%
pkg/mining/miningManager.go	1	0%
pkg/config/config.go	4	0%
pkg/tracker/gasPrice/gasPrice.go	18	0%
pkg/tracker/index/index.go	26	0%
pkg/mining/cpuMiner.go	39	0%
pkg/tracker/index/balancer.go	49	0%
pkg/tracker/index/uniswap.go	50	0%
pkg/mining/miningGroup.go	124	0%

Totals
Change from base Build 913997466:	-41.04%
Covered Lines:	95
Relevant Lines:	1926

---

💛 - Coveralls