Fixed compilation and loading issues for 2020.10.27.17.13

Added Cluster.GetSimBodies() and SimBody.GetBlocks()
Fixed some issues with IDs and bad handling of them

Only works if the constructors are used

Fixed Assert.Equal()
Changed tests to reflect changes
Added Block property to the block event args
Completely removed sync things

Newly created blocks use the initializer to set properties, allowing the user to set per-block properties

And store delegates of dynamic methods invoking constructors
Tested with the automated tests

Removed BlockIdentifiers.OWNED_BLOCKS as the original got replaced with an array
Added the correct group for each supported functional block
Removed EntityFactory property from IEntitySerializer as it is provided on deserialization

Removed some inputs from FakeInput

They are useful

Fixed setting player properties
Changed player rotation to float3
Added constructor for BlockColor with an index param
Improved Player.Exists() ~~hopefully~~

A bit hacky, but it works

Apparently they're processed, unlike in my save

Added an event for placing and removing blocks
Added a class to wrap event calls in a try-catch
Removed BlockDoesNotExistException
Made Block.GetSimBody() return null if block doesn't exist

Added center of mass
Removed delta velocities

Made GetBlockInfo() always return a reference without needing it as a parameter
Fixed Color property
Added CustomColor property for temporarily setting any color