EcoItems v6.8.0

- Fixed placeholder injections not working for permanent effects

• Updated to use new eco 6.56.0 placeholder system
• Added enable and disable triggers
• Added create_hologram effect
• Added kick effect
• Added clear_invulnerability effect
• Optimised mining effects (mine_radius, vein, drill, etc)
• Various other optimisations

- Reworked holder loading, duplicate holders will now load properly

• Fixed critical bug with bonus_health and health with add_stat (Thanks SenMC for testing!)
• Fixed bug with the price effect argument (Thanks OzzeR for providing a config to test with!)
• Prices will now throw an exception if they are set to a negative value
• Fixed all effect arguments being called twice for direct-ID chains
• (API) Made all block (EffectBlock/ConditionBlock/etc) constructors internal, this was an oversight, these should not have been public
• Rewrote AttributeModifier-based effects
• Fixed flight effect
• Fixed inverse filters not working

• Fixed potential 'flicker' bug with attribute effects
• Fixed points not integrating with price system

• Config categories can now preload to resolve load order issues
• Removed any use of DefaultArtifactVersion to fix 1.17 support
• Updated to eco 6.55.0
• Fixed extremely critical bug with Counters (Thanks everyone who reported!)
• (API) LibreforgePlugin#categories is now locked, you have to use LibreforgePlugin#addCategory to prevent desync
• (API) Added ViolationLogger and SilentViolationContext to allow for silent compilation

• Fixed ignite effect errors
• Added item_durability_multiplier effect

- Fixed DefaultArtifactVersion not existing for 1.17 users