Resolve "Support deployment of applications on remote clusters"

Related to #296

changed milestone to %v1.8.0

added In progress dev fedUC new feature labels

left review comments

added 3 commits

• a163faff - reverse domain service comment
• 644da20d - refactor
• a30f767b - add test

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added 1 commit

• e8bd0fa7 - add connection to cluster from nm service

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added 1 commit

• ba22336e - add migration

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resolved all threads

added 1 commit

• 8a97cb35 - fix test

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added 2 commits

• 95c0b7ec - small refactor
• 500706f2 - fix migration

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resolved all threads

added 1 commit

• dce4b833 - refactor after changes

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