Core/Movement: Corrected all speed checks

Port From (https://github.com/TrinityCore/TrinityCore/commit/396457e36a78ebd6f2b1c801121880168908134b)

Source/Game/Movement/MotionMaster.cs

@@ -351,6 +351,9 @@ namespace Game.Movement
             if (_owner.IsTypeId(TypeId.Player))
                 return;
 
+            if (speedXY < 0.01f)
+                return;
+
             float x, y, z;
             float moveTimeHalf = (float)(speedZ / gravity);
             float dist = 2 * moveTimeHalf * speedXY;
@@ -393,6 +396,8 @@ namespace Game.Movement
             JumpArrivalCastArgs arrivalCast = null, SpellEffectExtraData spellEffectExtraData = null)
         {
             Log.outDebug(LogFilter.Server, "Unit ({0}) jump to point (X: {1} Y: {2} Z: {3})", _owner.GetGUID().ToString(), x, y, z);
+            if (speedXY < 0.01f)
+                return;
 
             float moveTimeHalf = (float)(speedZ / gravity);
             float max_height = -MoveSpline.computeFallElevation(moveTimeHalf, false, -speedZ);

Source/Game/Movement/MoveSplineInitArgs.cs

@@ -66,7 +66,7 @@ namespace Game.Movement
 
             if (!CHECK(path.Length > 1))
                 return false;
-            if (!CHECK(velocity > 0.01f))
+            if (!CHECK(velocity >= 0.01f))
                 return false;
             if (!CHECK(time_perc >= 0.0f && time_perc <= 1.0f))
                 return false;

Source/Game/Spells/SpellEffects.cs

@@ -4179,7 +4179,7 @@ namespace Game.Spells
             float ratio = 0.1f;
             float speedxy = effectInfo.MiscValue * ratio;
             float speedz = damage * ratio;
-            if (speedxy < 0.1f && speedz < 0.1f)
+            if (speedxy < 0.01f && speedz < 0.01f)
                 return;
 
             float x, y;