Updated Propify!

Created global forwards OnPropified to let plugins know that a player
has been propped and OnProplistLoaded to let plugins know that the prop
list was (re?)initialized.
Also created a native method AddModelData to add new props dynamically.
Updated Propify!

Added AddModelData as an optional native and commentary touchups.
Updated Propify!

Added an externally accessible method to remove props and gain raw
access to the underlying prop arrays.
Updated Propify!

Removed GetModelDataArrays as that was apparently not feasible.  Pity it
was short lived.  Replaced it with GetModelNamesArray and
GetModelPathsArray
Added Propify! Ghost Fix

Provides a fix for the glow effect on ghost models.
Updated Propify! Ghost Fix

It looks like repropping re-enables the glow effect, so it looks like we
should just stop the particle effect on every prop that isn't a ghost
and merge the functionality into the main Propify! plugin.  I'll do that
after sleep.
Updated Propify! Ghost Fix

Added precise checks for model paths.
Updated Propify!

Added forwards to let plugins know that a prop was added or removed from
the list.
Updated Propify! plugins

Added "Propify_" prefix to all external-facing methods while we were
adding new methods.  I NEVER KNEW PLUGIN CONVENTIONS WERE SO HARD

Bumped Propify! up a version number; the others are just patch
revisions.
Updated Propify! Ghost Fix + Persistence

Ghost Fix:  Forgot to rename the forward.
Persistence:  Changed it around so it only flags the client to be
repropped on spawn.
Updated Propify!

Changed UnpropPlayer to use TF2_RegeneratePlayer instead of storing the
class and respawning.
Let's see how well that works out.
Updated .gitignore

Excluded a relink.cmd script that I created to hardlink the include file
from Propify! with the includes in my SourceMod compile directory.