Implement ServerDifficulty codec.

Signed-off-by: William Lebel <lebelwilliam@gmail.com>
Implement CombatEvent codec.

Signed-off-by: William Lebel <lebelwilliam@gmail.com>
Add 0x43 (Camera).

Signed-off-by: William Lebel <lebelwilliam@gmail.com>
Packet 0x48 codec added.

Signed-off-by: William Lebel <lebelwilliam@gmail.com>
Packet 0x44 added (WorldBorder)

Signed-off-by: William Lebel <lebelwilliam@gmail.com>
Use constants for CombatEvent.

Signed-off-by: William Lebel <lebelwilliam@gmail.com>
Packet 0x45 added. (Title). Some formatting.

Signed-off-by: William Lebel <lebelwilliam@gmail.com>
Add 0x49 (Entity update NBT). Using varLong now in WorldBorder.

Signed-off-by: William Lebel <lebelwilliam@gmail.com>