Fix 6395: Add knowledge of smoke zero damage to princess

[Sleet01]

Have the WeaponFireInfo.computeExpectedDamage() method return 0 if the associated munition is Smoke, Flare, or FASCAM/Thunder type.
This should give Princess a better idea of the utility of some munitions when planning turns and attacks, so she chooses them less often.
Similarly, explicitly set the damage value of Smoke, Flare, or FASCAM/Thunder artillery munitions to 0 for Artillery fire control computations.

We can either replace this with a generalized Smoke or Utility Munition planner, or implement that at a higher level, but for now we don't want Princess to treat zero-damage rounds as if they do damage to targets.

This also fixes an NPE path in minefield handling, when artillery-deployed minefields are used in counter-battery attacks.
Unfortunately it looks like all counter-battery attacks currently compute an expected damage of 0.0, possibly due to the targets being off-board, so Princess still chooses munitions for these attacks randomly.

Additionally, add trailing spaces to the Glancing Blow and Direct Blow messages so that they produce lines like:

- Glancing Blow - 6 missile(s) hit

rather than

- Glancing Blow -6 missile(s) hit

which can be confusing.

Testing:

• Ran several Princess-on-Princess battles with Smoke (and other) munitions equipped.
• Ran all 3 projects' unit tests.

Close #6395

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.57%. Comparing base (c640d47) to head (e20bf40).
Report is 86 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6397      +/-   ##
============================================
+ Coverage     28.56%   28.57%   +0.01%     
+ Complexity    14090    14088       -2     
============================================
  Files          2788     2785       -3     
  Lines        273454   273302     -152     
  Branches      48432    48414      -18     
============================================
  Hits          78104    78104              
+ Misses       191367   191217     -150     
+ Partials       3983     3981       -2     

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[Sleet01]

Converted to draft; I'm also adding Thunder, FASCAM, maybe a couple others as well

[HammerGS]

Checked with Co-Pilot and IDEA AI