Adding option to path custom archive option

[venmanyarun]

Adding option to path custom archive option for latest versions of liberty, which support POSIX paths

Part of OpenLiberty/ci.maven#1950

[cherylking]

I don't agree with these changes. There is no reason to pass in a separate custom archive option. Just set a boolean saying whether to use posix rules or not, and have the logic within the existing addArchiveOption method. Also, won't LGP need the same logic? The server ant task is called from AbstractServerTask.groovy in the executeServerCommand method. The archive option is set in PackageTask.groovy in method packageServer method.

[venmanyarun]

I don't agree with these changes. There is no reason to pass in a separate custom archive option. Just set a boolean saying whether to use posix rules or not, and have the logic within the existing addArchiveOption method. Also, won't LGP need the same logic? The server ant task is called from AbstractServerTask.groovy in the executeServerCommand method. The archive option is set in PackageTask.groovy in method packageServer method.

1. Changes made based on review comments to use boolean flag
2. LGP PR raised after adding similar tests and changes in PackageTask.groovy archive option fix for gradle ci.gradle#1029

[cherylking]

lgtm