Attribute naming cleanup and Collection Range attribute

[DaFuqs]

• Attributes are now registered statically to prevent load-order shenanigans
• Attributes that are only suitable for players (rendering, loot, experience and mining attributes) will only be registered for players, instead of all LivingEntities
• All attributes are now named generic. or player., depending on where they are applicable to match vanilla behavior
• Added new attribute "collection range" that influences how far away the player is able to collect items / experience orbs (configurable via entity type tag)
• Updated readme and examples

[Globox1997]

Good stuff