Add support for dynamic port ranges

[victor-prodan]

Currently, we can describe only one port at a time.
There are servers that use a continuous range of ports (i.e. 7000-7010).
When using dynamic port allocation, if we specify each port independently, they will be shuffled across the allocation range and will not be continuous anymore.
We need thus a dynamic allocation method for a range of ports that randomizes only the beginning of the range, keeping the range together (i.e. 7000-7010 becomes 4124-4134)

[victor-prodan]

Actually, I guess there should be support for static port ranges as well, why not?

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'This issue is marked as Stale due to inactivity for more than 30 days. To avoid being marked as 'stale' please add 'awaiting-maintainer' label or add a comment. Thank you for your contributions '

[markmandel]

Reopening - looks like a bug in the bot. Should still be stale though.

[github-actions]

'This issue is marked as Stale due to inactivity for more than 30 days. To avoid being marked as 'stale' please add 'awaiting-maintainer' label or add a comment. Thank you for your contributions '

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This issue is marked as obsolete due to inactivity for last 60 days. To avoid issue getting closed in next 30 days, please add a comment or add 'awaiting-maintainer' label. Thank you for your contributions

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We are closing this as there was no activity in this issue for last 90 days. Please reopen if you’d like to discuss anything further.