Added a way to store block groups as blueprints
Blocks can be added/removed from block groups, although it doesn't work well atm
Added some patches to the test class in an attempt to debug an unrelated issue
Added a command to test placing a block group
Added a SelectedBlueprint property to the Player class

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

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