Sounds for Bus Traffic Pack v8.7

Changelog v8.7
-sounds for all buses from version 8.7 plus most buses from the brazilian pack
-a bunch of new sounds for Setra, Volvo and Mercedes buses
-some sounds reworked
-removed the storage files to maintain compatibility with future main mod versions

Personalized sounds for Bus Traffic Pack by Jazzycat v8.7
place mod above the main pack

Besides personalized sounds, I increased the max_speed of buses to 100-110 km/h. Some buses from the pack that are rather city buses, have been transferred to city car, this being the reason of the presence of the storage files in my sound mod.