Discard unmerged changes in the development instance

[ewingjm]

Is your feature request related to a problem? Please describe.
It would be useful to have the ability to discard changes made for a particular solution e.g. when the changes are experimental.

Describe the solution you'd like
Essentially the opposite to a solution merge:

• a solution (which mirrors the current development solution) could be created in the master instance
• the above solution is then exported and imported into the development instance
• any components which are only in the development solution could be deleted

This would then bring the components in that development solution in line with what is currently in source control.