Updated movement mappings for 19w08b (#498)

FFF changed to Vec3d, this updates those functions to match the mappings that were added in https://github.com/FabricMC/yarn/pull/492 + a few other new mappings

movementSpeed -> speed
vec3dHorizontalLengthSq -> Entity.squaredHorizontalLength

mappings/net/minecraft/entity/Entity.mapping

@@ -98,6 +98,8 @@ CLASS ahm net/minecraft/entity/Entity
 	METHOD a setRotation (FF)V
 		ARG 1 yaw
 	METHOD a updateVelocity (FLcnl;)V
+		ARG 1 speed
+		ARG 2 movementInput
 	METHOD a damage (Lagv;F)Z
 		ARG 1 source
 		ARG 2 amount
@@ -144,6 +146,10 @@ CLASS ahm net/minecraft/entity/Entity
 		ARG 1 anchor
 		ARG 2 target
 	METHOD a setBoundingBox (Lcng;)V
+	METHOD a movementInputToVelocity (Lcnl;FF)Lcnl;
+		ARG 0 movementInput
+		ARG 1 speed
+		ARG 2 yaw
 	METHOD a isTeamPlayer (Lcoo;)Z
 	METHOD a setPositionAndAngles (Les;FF)V
 		ARG 1 pos
@@ -222,6 +228,7 @@ CLASS ahm net/minecraft/entity/Entity
 	METHOD b onPlayerCollision (Larz;)V
 	METHOD b interact (Larz;Lagg;)Z
 		ARG 1 player
+	METHOD b squaredHorizontalLength (Lcnl;)D
 	METHOD b writeCustomDataToTag (Lhx;)V
 	METHOD b removeScoreboardTag (Ljava/lang/String;)Z
 	METHOD b setCustomName (Lji;)V
@@ -304,6 +311,8 @@ CLASS ahm net/minecraft/entity/Entity
 	METHOD f setSprinting (Z)V
 	METHOD g addVelocity (DDD)V
 		ARG 1 deltaX
+		ARG 3 deltaY
+		ARG 5 deltaZ
 	METHOD g getPitch (F)F
 	METHOD g burn (I)V
 	METHOD g distanceTo (Lahm;)F

mappings/net/minecraft/entity/LivingEntity.mapping

@@ -114,6 +114,7 @@ CLASS ahv net/minecraft/entity/LivingEntity
 	METHOD ds wakeUp ()V
 	METHOD e getHurtSound (Lagv;)Lxy;
 	METHOD e travel (Lcnl;)V
+		ARG 1 movementInput
 	METHOD f attackLivingEntity (Lahv;)V
 	METHOD f setSleepingPosition (Les;)V
 	METHOD g sleep (Les;)V