chore(package-portlet): package-portlet enabled for default installation

[ag4ums]

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• Which issue is this pull request belonging to and how is it solving it? (Refer to issue here)
• Did you add or update any new dependencies that are required for your change?

Issue: Closes #2285

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• All related issues are referenced in commit messages and in PR

[KoukiHama]

I think we need to change this one too.

sw360/libraries/datahandler/src/main/java/org/eclipse/sw360/datahandler/common/SW360Constants.java

Line 219 in 7d35111

IS_PACKAGE_PORTLET_ENABLED = Boolean.parseBoolean(props.getProperty("package.portlet.enabled", "false"));

[tienlee]

Test successful.