[New Feature] Burst in Charging defensive Structures

[FS-21]

Description:

In RA1 Tesla Coils had a weapon that shoots 3 times in each charge thanks to the tag "Charges=yes" in the Weapon and "Ammo=3" in the Tesla Structure. That logic can't be done with the available tags in RA2 because it was disabled.

Currently the tesla initial charge looks like this:
[Artmd.ini] > [TESLA]
...
IsAnimDelayedFire=yes ; SJM: Firing anim (SpecialAnim) delays firing of weapon
DelayedFireDelay=28 ; SJM: Must match playback of anim, and ideally audio too
...

If you try to use the Burst tag in the RA2 Tesla Coil Weapon it won't be used (or it "charges" in each shoot).

Possible Implementation:

Without adding new tags, I suggest to support the Burst tag in the weapon of the structure with IsAnimDelayedFire for emulating the RA behaviour.

; Fire by Tesla Coil
[CoilBolt]
...
Burst=3
...