Updates to paramedics and firemen

[Faustie]

Both the medkit and extinguisher have been improved. They both use a form of 'ammo' so that they no longer have unlimited, unrealistic supplies, and this can be refilled by using /resupply on their respective vehicles. This means that their job is a little more involved, and serious emergencies where there are multiple wounded/injured or multiple fires requires a bigger team effort to resolve cleanly.

The sounds for the medkit and extinguisher have been updated (new empty/reload sounds).

Changelog

Spoiler :

[25/04/2014]

- Paramedic's medkit and fireman's extinguisher have been upgraded. They both now use a form of 'ammo' to be more realistic and have sound improvements.
- Paramedics and firemen can now /resupply at their respective vehicles.