Add Javadoc descriptions to the fields of AbstractBlock (#3796)

* document field AbstractBlock.jumpVelocityMultiplier

* fix address of `@see` notes in jumpVelocityMultiplier

* document the rest of the fields for AbstractBlock (except for DIRECTIONS)

mappings/net/minecraft/block/AbstractBlock.mapping

@@ -220,17 +220,53 @@ CLASS net/minecraft/class_4970 net/minecraft/block/AbstractBlock
 	COMMENT <li>Called before {@link #getDroppedStacks getDroppedStacks} in this case.</li>
 	COMMENT </ol>
 	FIELD field_23154 dynamicBounds Z
+		COMMENT Whether this block's collision shape can change.
+		COMMENT
+		COMMENT @see #hasDynamicBounds
 	FIELD field_23155 settings Lnet/minecraft/class_4970$class_2251;
+		COMMENT The {@link AbstractBlock.Settings} to apply to this block.
 	FIELD field_23156 lootTableId Lnet/minecraft/class_2960;
+		COMMENT The {@link net.minecraft.util.Identifier} of the loot table that determines what this block drops.
+		COMMENT
+		COMMENT @see #getLootTableId
+		COMMENT @see #getDroppedStacks
 	FIELD field_23157 DIRECTIONS [Lnet/minecraft/class_2350;
 	FIELD field_23159 collidable Z
+		COMMENT Whether this block can be walked on or through.
+		COMMENT
+		COMMENT @see #getCollisionShape
 	FIELD field_23160 resistance F
+		COMMENT The blast resistance of the block.
+		COMMENT
+		COMMENT @see Block#getBlastResistance
 	FIELD field_23161 randomTicks Z
+		COMMENT Whether this block should tick when randomly selected when ticking the world. An example of this ticking is crop growth.
+		COMMENT
+		COMMENT @see Block#hasRandomTicks
+		COMMENT @see net.minecraft.server.world.ServerWorld#tickChunk
 	FIELD field_23162 soundGroup Lnet/minecraft/class_2498;
+		COMMENT The collection of sounds played when breaking, stepping on, placing, hitting (with a projectile), or falling on this block.
+		COMMENT
+		COMMENT @see #getSoundGroup
 	FIELD field_23163 slipperiness F
+		COMMENT A speed reduction applied to a {@link net.minecraft.entity.LivingEntity} that tries to move across this block.
+		COMMENT
+		COMMENT @see Block#getSlipperiness
+		COMMENT @see net.minecraft.entity.LivingEntity#travel
 	FIELD field_23164 velocityMultiplier F
+		COMMENT The multiplier applied to the velocity of an {@link net.minecraft.entity.Entity} when it walks on this block.
+		COMMENT
+		COMMENT @see Block#getVelocityMultiplier
+		COMMENT @see net.minecraft.entity.Entity#getVelocityMultiplier
 	FIELD field_23165 jumpVelocityMultiplier F
+		COMMENT The multiplier applied to the velocity of a {@link net.minecraft.entity.LivingEntity} when it jumps off this block.
+		COMMENT
+		COMMENT @see Block#getJumpVelocityMultiplier
+		COMMENT @see net.minecraft.entity.Entity#getJumpVelocityMultiplier
 	FIELD field_40337 requiredFeatures Lnet/minecraft/class_7699;
+		COMMENT The set of {@link net.minecraft.resource.featuretoggle.FeatureFlag FeatureFlags} that are required for this block to work correctly.
+		COMMENT
+		COMMENT @see net.minecraft.resource.featuretoggle.FeatureFlags
 	METHOD <init> (Lnet/minecraft/class_4970$class_2251;)V
 		ARG 1 settings
 	METHOD method_17454 createScreenHandlerFactory (Lnet/minecraft/class_2680;Lnet/minecraft/class_1937;Lnet/minecraft/class_2338;)Lnet/minecraft/class_3908;