Plugins VAMAtmosphere

Thanks to @Nial , fixed a bug in the ambience and thunder simulator where the initialization loop was too short for slower configurations resulting in the script not being able to restore properly the saved settings or initialize the library.

• Added a new thunder simulator
• Updated the ambience script to fade in and out sounds when you enable or disable the script. (can be handy when controlling new sound during a scene).
• Added 2 new demos for the thunder simulator : one which an ambience, another with an interactive setup.
• Added 5 new rain ambiences :
  • Rain heavy 01
  • Rain heavy city 01
  • Rain heavy city 02
  • Rain light 01
  • Rain thunder city 01

• Volume boost : re-normalized ambiences to -24db LUFS
• Volume boost : re-normalized neighbors to -30db LUFS ( depending on how it feels ingame, this might be updated again to get a bit more boost)
• Change the dropdowns of the Ambience and Reverb Zone scripts to scrollable dropdowns
• Added the missing documentation of the reverb zone
• Added 8 new ambiences :
  • Birds 01
  • Ocean 01
  • Rumble 01
  • Rumble 02
  • Scifi 02
  • Underwater 01
  • Underwater 02
  • Wind 01