[RoN] [2] Oceanborn RI

Safety Update.

Global changes:

• All ramps has become more safer.
• Added new version "Safety First" (mostly reminds classic version, but units are highly restricted to fall into water)

Lobby changes:

• Visual fixes.
• Significant visual changes. Now it has visual difference between Quicksand and Oceanborn lobbies.
• Added spectate buttons.

My idea for classic version is, actually was, to try to add more dangerous gameplay to make it you more risk at lower grounds, where units could be pushed into water and in the most scenarios it could mean unit death, but you was able to save it by building bridge if it somehow not drowned by magma and survived. But to be honest, I've overdo this mechanic, so now when units are falling it mostly means your mistake by not being carefull at ramps. Also if there's people which don't like such risking gameplay, now you can play "Safety First" version.