Bash attack fix

[BartPortugalec]

[!IMPORTANT] Add handling for bash attacks in TES5DamageFormulaImpl by introducing isBashAttack parameter and updating damage calculation logic.

• Behavior:
  • Modify DetermineDamageFromSource in TES5DamageFormulaImpl to accept isBashAttack parameter.
  • Update CalculateDamage in TES5DamageFormulaImpl to apply a 0.3x multiplier for bash attacks.
• Functions:
  • Change IsUnarmedAttack to consider isBashAttack and return false if true.
• Misc:
  • Remove unused IsUnarmedAttack function definition.

^{This description was created by for 093e22729ce612d58ca5ae758ce78b713cba0630. It will automatically update as commits are pushed.}