Savegame hotfix
This fixes the first mobj thinker added/read from $$$.sav not being relinked to other objects as their target/tracer/etc properly. In particular, this fixes Brak's electric shield disappearing for anyone joining a netgame playing ERCZ (as Brak happens to be the first object added/read in this case, and Brak is the shield's target).
See merge request !146
-Updated packet name list so the debug file no longer shows garbage packet names
-Replaced byte values with actual net command names in the debug file. Only the first net command in a packet will be shown though
-Added a MOBJCONSISTANCY define that makes the game takes all revelant mobjs to be counted in the synch seed
-Added a PACKETDROP define that adds two console commands "drop" and "droprate" to simulate bad internet by dropping packets
-Added/changed comments here in there in the netcode
-Fixed a minor error that would ignore one of the urgent ack slots
-Added a space between the map name and "zone" for the messages shown in a joiner's console
This fixes Brak's electric barrier disappearing for joiners to ERZC. There seems to be some issues with the lava falls there too I've found, but the electric barrier actually stays around now at least
* Set the default flicky group to be equivalent to Flickylist = Demo.
* Refactored a little. (This also removed a crash-causing typo in a Z_Free in P_ClearSingleMapHeaderInfo.)
* MT_EXPLODE's anims partially FF_ANIMATE'd.
* A_FlickySpawn turned into a wrapper for internal function that does what A_FlickySpawn did but returns a pointer to the spawned flicky.
* Added the ability to read in mobjtypes as well as from a short list of flicky constants.
* Added a new state, S_XPLD_FLICKY, which is the new deathstate of all badniks.
* Put the disabled animal-spawn-on-P_KillMobj behind a #define.
* Renamed the branch and associated properties to something not rife with sin.
No idea if this compiles yet (let alone if what is there works at all), just getting this out the way so I can work on certain other things *cough plane displacement cough*
Shield actions
The branch is basically complete, I just need to figure out the best way to have the whirlwind shield let the player know you can use it.
SRB2 shields:
* WHIRLWIND SHIELD - It's like King Dedede. You can't improve on perfection. (Might get some new sprites as tells for being able to use it, though.)
* ARMAGEDDON SHIELD - Create a bomb burst whenever you pick up another of the same shield FOR FREE!
* MAGNETIC SHIELD - Homing attack towards enemies only, no stopping when you hit 'em, no zooming off if you're not near enemies.
* ELEMENTAL SHIELD - Perform a piercing stomp that rips through enemies (that don't have spikes on their heads) and creates a fire burst when you land above water.
* FORCE SHIELD - Perfect stop in midair.
S3NK shields:
* FLAME SHIELD - Additive thok on the spin button.
* BUBBLE SHIELD - Bubble bounce to 1.5*jumpheight (also rips through enemies).
* THUNDER SHIELD - Double jump, but with no uncurl and a twang noise.
Supers don't have access to shield actives. Characters with thok can superfloat like usual.
New Lua hooks:
* "ShieldSpawn" in the form function(player), hooks into P_SpawnShieldOrb.
* "ShieldSpecial" in the form function(player), hooks into the shield activation code.
See merge request !31
