Javadoc and Formatting fixes.
Also, extremely minor code changes which have been tested.
This commit is only part one of two commits that aim to fix problems with formatting in our project. In part two I will modify the Google Java Style Guide (since it closely matches our code style) for our project so there is guidance on how to format and document.
* Updated PlotSquared URL
* Removed plugin acronyms
* Fixed a typo
* Fixed grammar
* Use modern block id's
* Update YouTube video URL
* Fix flipping of chests and stairs
* Check if the new property value is valid before updating
* Only for horizontal flips double chests/stairs should be modified
* Remove LocatedBlock overhead in LBL map
* Add new space-efficient block map, with thourough testing
* Drop ordering property, add full insertion test
* Add licenses
* Fix mocked platform conflicts
* Disable full block map testing for faster builds
* Re-implement BlockMap with fastutil maps
* Re-write chunk batching to be memory efficient
* Make MultiStageReorder use BlockMap
* Increase LBL load factor, fix long-pack limit detection
* Fix infinite loop in chunk batching
* Save memory in history by cleaning up MSR
* Re-implement LocatedBlockList in BlockMap
* Fix data race with BlockType lazy fields
* Make IDs ALWAYS present, only runtime-consistent. Use for memory efficiency in BlockMap
* Remap inner structure of BlockMap for smaller maps
* Remove containedBlocks fields, not very efficient
* Fix minor de-optimizing bug in stage reorder
* Make long packed y signed
* Add extended Y limit configuration option
* Add licenses
* Store 3 ints for unoptimized BV list
* Add final to BitMath
* Correct int-cast for long-packing
