feat:command changes

[anj20]

Purpose of PR?: Replace the mswms_demodata command with a --seed option for the mswms command, aligning it with the behavior of the seed option in mscolab

Fixes #2631

Does this PR introduce a breaking change? No

If the changes in this PR are manually verified, list down the scenarios covered:: Verified that the seed function runs correctly when executed using mswms -seed

Checklist:

• [X] Bug fix. Fixes #
• [X] New feature (Non-API breaking changes that adds functionality)
• [X] PR Title follows the convention of <type>: <subject>
• [ ] Commit has unit tests

[ReimarBauer]

@anj20 do you have time to finish this in the next days?

[ReimarBauer]

@anj20 please solve the merge conflict

[anj20]

see comments

updated plz review it

[ReimarBauer]

this likly needs a rebase to develop