Classic-like water and lava movement.

[CybertronicToon]

This adds classic-like water and lava movement.

[UnknownShadow200]

raw dump of info from when I recorded myself placing lava multiple times

Recorded at 50 FPS
There are 20 ticks a second
--

PLACE->FLOOD | PLACE->FLOOD | DELTA
 (frame num) |  (Tick num)  | (Ticks)
-----------------------------------
116  -> 133  | 46   -> 53   | 120
361  -> 432  | 144  -> 172  | 30
444  -> 506  | 177  -> 202  | 35
529  -> 593  | 211  -> 237  | 80
727  -> 793  | 290  -> 317  | 25
791  -> 856  | 316  -> 342  | 25
846  -> 918  | 338  -> 367  | 20
906  -> 968  | 362  -> 387  | 55
1041 -> 1106 | 416  -> 442  | 35
1171 -> 1194 | 468  -> 477  | 85
1338 -> 1406 | 535  -> 562  | 35
1428 -> 1494 | 571  -> 597  | --
2748 -> 2818 | 1099 -> 1127 | 40
2911 -> 2918 | 1164 -> 1167 | 85
3065 -> 3131 | 1226 -> 1252 | --

[TheAwesome98-Real]

Can this and #485 be closed, cause they're for the legacy C# client?

[UnknownShadow200]

The issue has not been fixed