Add the Iconic version 2 of the famous JBMod map jb_waterhole

[0bama272]

Is your feature request related to a problem? Please describe.
We need to add jb_waterhole_v2

Describe the solution you'd like
Add jb_waterhole_v2 vmf, and bsp to the github repo, I've left a zip containing both the VMF and BSP file. Add the VMF file to mapsrc and the BSP file to game/jbmod/maps.

jb_waterhole_v2.vmf.zip