[TF2] Uncomment attribute code for every commented out attribute

[Drgregs-Marcus]

Various attributes in TF2's source code are disabled for seemingly no reason, and with additions such as VScript, the SDK itself, and trigger_add_or_remove_tf_player_attributes, there is no reason to keep them disabled.
The full list of attributes this would re-enable:
addperc_ondmgdone_tmpbuff
override_hand_model_index
mini_crit_airborne_deploy
stickybomb_fizzle_time
ammo_becomes_health
mult_zoom_fov
panic_attack

Additionally, there are three other attributes: disguise_speed_penalty, rj_air_bombardment, and set_charged_airblast. However, they no longer function and cause compilation errors, so those will remain disabled.

This would need to be accompanied by this pull request

[JoriKos]

Seems like changes to tf_weapon_flamethrower.cpp only remove a bunch of spaces, and don't actually uncomment the code.

[Drgregs-Marcus]

Seems like changes to tf_weapon_flamethrower.cpp only remove a bunch of spaces, and don't actually uncomment the code.

The spaces removal was an accident, a small oversight when re-commenting out set_charged_airblast.
I had to comment out set_charged_airblast again because it would cause compile errors and would potentially require more polish, such as HUD elements.
If you want, you can make a separate pull request to fix set_charged_airblast, and I'll link it here. It would be a great help.