[Johnny got his gun]

Adds shockwave effect to pretty much all explosions in your server, except those created by other Metamod/AMX(x) plugins.
Should work for any game mod*.

To other plugin authors:
For your own custom explosions I've made it (hopefully!) easy for you to call the shock effect whenever you need to at specified
origin, power and radius. Just copy and paste the stock function EXAPI_GenerateShock from this code to your code.
Then instruct your plugin users to also install this plugin. :-)

* Actually, this moves the following entities: weaponbox, armoury_entity, player, grenade, hostage_entity. These are of course fairly CS related (hostages etc), and if you want to you could give me a list of movable entities and maybe I can think of a better way to support other mods as well for coming versions of this plugin.