#1735: implement repo link feature, #1736: fix link creation

[hohwille]

This PR fixes #1735 and fixes #1736

Implemented changes:

• Improved workspace path access by adding IdeContext.getWorkspacePath(Path)
• Fixed and refactored FileAccessImpl.mklinkOnWindows
• Therefore added FileAccess methods getCommonNameCount, getPathStart, and getPathEnd.
• Added RepositoryConfig.links with RepositoryLink (and id).
• Support for workspaces=* including workspaces defined by arbitrary other workspaces defined by other repositories that may be processed later.
• Give preference to main workspace if that is included so if a repo is cloned to multiple workspaces, it will be cloned in main and symlinked in others.
• Generally cleanup and refactoring of RepositoryConfig and RepositoryProperties.
• Also added logic to sanatize values for repository config/properties.
• Extended RepositoryCommandletTest to test the new feature (testSetupRepositoryWithAllWorkspacesAndLinks)
• Added documentation

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Checklist for this PR

Make sure everything is checked before merging this PR. For further info please also see
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• When running mvn clean test locally all tests pass and build is successful
• PR title is of the form #«issue-id»: «brief summary» (e.g. #921: fixed setup.bat). If no issue ID exists, title only.
• PR top-level comment summarizes what has been done and contains link to addressed issue(s)
• PR and issue(s) have suitable labels
• Issue is set to In Progress and assigned to you or there is no issue (might happen for very small PRs)
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• You have added the issue implemented by your PR in CHANGELOG.adoc unless issue is labeled
  with internal

[coveralls]

Pull Request Test Coverage Report for Build 23003890195

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 390 unchanged lines in 6 files lost coverage.
• Overall coverage increased (+0.1%) to 70.474%

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Files with Coverage Reduction	New Missed Lines	%
com/devonfw/tools/ide/git/repository/RepositoryConfig.java	3	74.07%
com/devonfw/tools/ide/git/repository/RepositoryProperties.java	6	91.39%
com/devonfw/tools/ide/context/IdeContext.java	9	77.78%
com/devonfw/tools/ide/git/repository/RepositoryCommandlet.java	32	70.98%
com/devonfw/tools/ide/context/AbstractIdeContext.java	150	65.97%
com/devonfw/tools/ide/io/FileAccessImpl.java	190	67.36%

Totals
Change from base Build 22996868406:	0.1%
Covered Lines:	10730
Relevant Lines:	14633

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💛 - Coveralls