#437 Refactor npmurlupdater

[slskiba]

Fixes #437.

• Implements NpmBasedUrlUpdater as an extension of JsonUrlUpdater
• NpmUrlUpdater is now a NpmBasedUrlUpdater instead of a WebsiteUrlUpdater
• Added Tests for NpmUrlUpdater

There is a rather unclean workaround to fix versions being filtered properly for npm, so that alpha/beta versions are not being made available. These versions were not available with the prior used WebsiteURLUpdater. This problematic behaviour however is not specific to npm: Currently, e.g. python too makes alpha, beta and rc versions available to the user.
This problem arises due to these tools implementing their own update method, in which doAddVersion instead of addVersion of the AbstractUrlUpdater is being utilized, and by that, circumventing the mapVersion call in which these versions would have been filtered.

I am open to suggestions for a prettier solution for this workaround, however it seems to me it requires some refactoring on AbstractUrlUpdater, and might be best to do this in a seperate issue, and consider the refactoring of NpmUrlUpdater completed.

[coveralls]

Pull Request Test Coverage Report for Build 9805805158

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+0.09%) to 61.126%

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Files with Coverage Reduction	New Missed Lines	%
com/devonfw/tools/ide/tool/npm/NpmUrlUpdater.java	1	66.67%

Totals
Change from base Build 9800169993:	0.09%
Covered Lines:	5207
Relevant Lines:	8193

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9806511852

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 61.158%

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Totals
Change from base Build 9800169993:	0.1%
Covered Lines:	5207
Relevant Lines:	8189

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💛 - Coveralls

[slskiba]

This is the workaround mentioned above.

[coveralls]

Pull Request Test Coverage Report for Build 9807023953

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
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• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 3 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.5%) to 61.509%

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Files with Coverage Reduction	New Missed Lines	%
com/devonfw/tools/ide/commandlet/CommandletManagerImpl.java	3	90.11%

Totals
Change from base Build 9800169993:	0.5%
Covered Lines:	5253
Relevant Lines:	8224

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💛 - Coveralls

[slskiba]

Needs another refactoring round, moving away from overriding update, but instead implement addVersion and collectVersionsFromJson. This will also be necessary for the UrlUpdaters of AndroidStudio and Python, for which a separate Issue #458 has been opened.
Since NpmUrlUpdater needs to be reimplemented differently from the approach taken in this PR I will close this PR and open a new PR once NpmUrlUpdater is the approach discussed above.