Merge branch 'fonts_linux' into 'master'

Set fonts path for linux

See merge request alchemy/alchemy-next!49

indra/llrender/llfontgl.cpp

@@ -1115,6 +1115,10 @@ std::string LLFontGL::getFontPathSystem()
 			sSystemFontPath = "/WINDOWS/FONTS/";
 		}
 	}
+#elif LL_LINUX
+
+	sSystemFontPath = "/usr/share/fonts/";
+
 #endif
 
 	if (sSystemFontPath.empty())