add posixfs index command

[butonic]

The opencloud posix index command allows adding spaces on disk to the posixfs space by-type, by-user-id and by-group-id indexes. It needs to be run when restoring a space from a backup.

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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🟢 Metrics 36 complexity

Metric	Results
Complexity	36

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🟢 Coverage 0.00% diff coverage

Metric	Results
Coverage variation	Report missing for 81536bb1
Diff coverage	✅ 0.00% diff coverage

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Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (81536bb)	Report Missing	Report Missing	Report Missing
Head commit (ae7170a)	88436	20793	23.51%

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#3068)	112	0	0.00%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

¹ Codacy didn't receive coverage data for the commit, or there was an error processing the received data. Check your integration for errors and validate that your coverage setup is correct.

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