Battle: improve behavior when ghosts are in the team

[fheroes2bugs]

Preliminary checks

• I've checked that there aren't other open issues on the same topic.

Describe the problem requiring a solution

At the moment, computer tries to win battle as fast as he can. Good strategy, but not the best when the ghosts are in team.
After the battle (computer plays) I have 24 ghosts:

24.gh.mp4

It would be better to skip turn for non-ghosts stacks, so after the battle, it could be 34 ghosts (I play):

34.gh.mp4

Describe the possible solution

make units to skip turn, so ghosts can kill more units

Additional info

version 1.0.11

Save:
ghosts improve.zip

[ihhub]

Closing this as a duplicate of #7685 .