Backported Minecarts

A mod that backports the minecart changes added in 1.21.2

It adds:

-The ability for minecarts to jump from slopes.

-A smoother looking animation when mid-air.

-A fix to minecarts rotating incorrectly when the rail they are resting on are destroyed.

-A fix to minecarts rotating their server-side yaw incorrectly. (mostly affects commands and datapacks)

NOTE: 1.21 version works with Sinytra Connector (which is why it is labeled as a Neo/Forge mod) but not the 1.20.1 version for some strange reason 

Also, version 1.2.0 is in beta, I lost the original source code but I try to make it more accurate to the 1.21.2+ minecarts with its rebuild.