[Bleeding] Correct issues with MEGA_REDWOOD trees. Fixes BUKKIT-5568

In commit 6efeddfe57, TALL_REDWOOD was used instead of the proper TreeType
of MEGA_REDWOOD. Additionally, this fixes an issue in CraftWorld with an
improper boolean flag related to the generation of MEGA_REDWOOD trees.
[Bleeding] Allow generation of cocoa trees.
[Bleeding] Include equipment in EntityDeathEvent loot. Fixes BUKKIT-5566
[Bleeding] Recheck persistence for chicken jockeys each tick. Fixes BUKKIT-5577
Implement inventory creation by type and title. Fixes BUKKIT-4045

With the current API it is possible to create an inventory with a specific
type, but it is not possible to give such an inventory a title other than
the default.

The commit changes that by adding a method to optionally supply the title
for the given inventory type and holder, creating the functionality to
display any supported inventory type with a 32 character length String.

If the inventory title supplied is larger than 32 characters then an
IllegalArgumentException is thrown stating so.
[Bleeding] Fix stack overflow with Ender Crystals. Fixes BUKKIT-5583
Avoid using the user cache in skull meta.

To handle changes in 1.7.9 we changed skull meta to use GameProfile
instances instead of strings of player names. This reflects what vanilla is
actually storing for skulls now. As skulls still require a name our API was
not changed and we instead look up the rest of the profile information from
the name. The way this was implemented made it so that deserializing a skull
or setting its name potentially involved a network request. As skull meta
itself does not actually require a complete profile we now simply create one
that only contains a name and leave populating it to the server when it is
actually needed.
POM Changes
mc-dev imports
Skeleton API Implementations
Obfuscation Helpers
Spigot Configuration
Better Chunk Tick Selection
Crop Growth Rates
More Efficient Chunk Save Queue
Merge tweaks and configuration

This allows the merging of Experience orbs, as well as the configuration of the merge radius of items. Additionally it refactors the merge algorithm to be a better experience for players.
LongHash Tweaks
Async Operation Catching

Catch and throw an exception when a potentially unsafe operation occurs on a thread other than the main server thread.
View Distance

This commit allows the user to select per world view distances, and view distances below 3. Be wary of the issues selecting a view distance of 1 or 2 may cause!
Compressed Nibble Arrays

Implement 'lightening' of NibbleArrays - only allocate
 buffers when non-trivial value Saving from 40-45% of memory use by chunk
 section data.

Finish up NibbleArray lightening work - use for Snapshots, reduce copies

Fix nibble handling with NBT - arrays aren't copied by NBTByteArray