[Minor] Fix ForceWeapon.InRange not taking effect when attacking non-techno

[CrimRecya]

• Also encapsulated the function for Forcing specific weapon by target type #1631 to use.

  顺便封装了函数，以便 Forcing specific weapon by target type #1631 使用。

[github-actions]

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[Coronia]

It’d better to add a tag to customize whether ForceWeapon.InRange should affect empty ground, cuz 1) other ForceWeapon doesn’t really work on empty ground, so this is an exception, and 2) there’re cases when modders only want to use it on units only

[Coronia]

add doc for ForceWeapon.InRange.TechnoOnly and we're good