#788: Add support for IDE_OPTIONS variable per IDE commandlet

[Ali-Shariati-Najafabadi]

This PR fixes #788

Implemented changes:

• Added support for «IDE»_OPTIONS (e.g. INTELLIJ_OPTIONS, ECLIPSE_OPTIONS, VSCODE_OPTIONS, ANDROID_STUDIO_OPTIONS, PYCHARM_OPTIONS) to pass additional command-line arguments when starting an IDE, analogue to the existing global IDE_OPTIONS
• Implemented once in IdeToolCommandlet.runTool(List<String>) so it applies to all IDE commandlets (Eclipse, IntelliJ, Android Studio, PyCharm, VSCode/VSCodium) without per-tool duplication
• Scoped to only the actual IDE-launch call, not internal calls like plugin installation or repository import
• Registered the new variables in IdeVariables.java and documented them in variables.adoc

Testing instructions

1. Set e.g. INTELLIJ_OPTIONS=nosplash in conf/ide.properties
2. Run ide intellij and verify the extra argument is passed to the IDE binary
3. Automated coverage: mvn -Dtest=EclipseTest,IntellijTest,VscodeTest test in the cli module

Checklist for this PR

• 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)
• You followed all coding conventions
• You have added the issue implemented by your PR in CHANGELOG.adoc unless issue is labeled with internal
• You have formulated clear instructions on how to test your contribution under "Testing instructions"

[coveralls]

Coverage Report for CI Build 32495685448

Coverage increased (+0.04%) to 73.625%

Details

• Coverage increased (+0.04%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 8 coverage regressions across 1 file.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

8 previously-covered lines in 1 file lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/tool/ide/IdeToolCommandlet.java	8	88.74%

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Coverage Stats

Relevant Lines:	17907
Covered Lines:	13785
Line Coverage:	76.98%
Relevant Branches:	7947
Covered Branches:	5250
Branch Coverage:	66.06%
Branches in Coverage %:	Yes
Coverage Strength:	3.28 hits per line

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💛 - Coveralls

[samuelkos17]

Very nice and clean implementation! I've followed your testing instructions and everything worked perfectly and all tests passed. I've no recommendations for any changes so i'll move this to In Review 😄

[hohwille]

@Ali-Shariati-Najafabadi thanks for your PR. Nice implementation of the story including test coverage. Good job 👍
I only left some small remarks for rework.