chore: Separated service extensions

[coveralls]

Pull Request Test Coverage Report for Build 452437708

• 123 of 129 (95.35%) changed or added relevant lines in 8 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 76.493%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/services/zone-group-topology.service.extension.ts	17	23	73.91%
<!--	Total:	123	129	95.35%	-->

Totals
Change from base Build 448839678:	0.1%
Covered Lines:	1143
Relevant Lines:	1513

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💛 - Coveralls

[github-actions[bot]]

:tada: This PR is included in version 2.3.0-beta.3 :tada:

The release is available on:

• npm package (@beta dist-tag)
• GitHub release

Your semantic-release bot :package::rocket:

[github-actions[bot]]

:tada: This PR is included in version 2.3.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: