[refactor] #4075: Move metrics related functionality into MetricsReporter

[Erigara]

Description

• sumergai no longer responsible for handling metrics for torii
• fix bug with not proper view change index in metrics

Linked issue

Closes #4075

[coveralls]

Pull Request Test Coverage Report for Build 8478813624

Details

• 0 of 136 (0.0%) changed or added relevant lines in 4 files are covered.
• 5284 unchanged lines in 95 files lost coverage.
• Overall coverage increased (+0.8%) to 57.549%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
core/src/sumeragi/mod.rs	0	9	0.0%
torii/src/routing.rs	0	9	0.0%
torii/src/lib.rs	0	16	0.0%
core/src/metrics.rs	0	102	0.0%

Files with Coverage Reduction	New Missed Lines	%
primitives/src/conststr.rs	1	91.14%
crypto/src/hash.rs	1	73.78%
ffi/derive/src/convert.rs	1	84.45%
primitives/src/lib.rs	1	0.0%
core/src/sumeragi/network_topology.rs	1	98.78%
primitives/src/must_use.rs	2	74.29%
crypto/src/signature/bls/mod.rs	2	0.0%
config/src/snapshot.rs	3	78.57%
data_model/derive/src/has_origin.rs	3	95.16%
config/src/kura.rs	3	80.0%

Totals
Change from base Build 7884695009:	0.8%
Covered Lines:	23358
Relevant Lines:	40588

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💛 - Coveralls

The base branch was changed.