TASK: Add force strategy to the rebase workspace command

[mficzel]

This change allows to specify the error handling strategy for the rebaseWorkspace command and introduces a force option there. If no strategy is specified the fail strategy is uses which is the same behavior as before.

Based on this the workspace:rebase command is extended with a new --force option that allows to rebase even workspaces in state OUTDATED_CONFLICT by ignoring all conflicting events and preserving the rest.

Partially solves: #4866 (cli part)

In addition the number of logged informations when a rebase failed is reduced to a sane size that does not grow exponentially. Resolves: #4545

Upgrade instructions

Review instructions

I suggest to add a workspace:duplicate command in a separate pr that can be run before workspace:rebase --force to keep the changes for later reference.

Checklist

• Code follows the PSR-2 coding style
• Tests have been created, run and adjusted as needed
• The PR is created against the lowest maintained branch
• Reviewer - PR Title is brief but complete and starts with FEATURE|TASK|BUGFIX
• Reviewer - The first section explains the change briefly for change-logs
• Reviewer - Breaking Changes are marked with !!! and have upgrade-instructions

[nezaniel]

Looks good, nice

[mhsdesign]

workspace:duplicate yeah or rather a workspace:reset backup-ws workspace-to-copy