Fix OpenBlocks Last Stand trigger condition

[jchung01]

Fixes the Last Stand enchant triggering on pre-mitigation damage (before enchants, potions, etc). It now triggers on post-mitigation damage, as originally intended.

The specific way this tweak is implemented is to offer maximum compatibility with other mixins (e.g. Dimension Hopper Tweaks) into this method. As a side effect, this does cause an extra object allocation for each player damage event, but that should be okay.

Also bumps required min version of MixinBooter to 8.9 for @WrapOperation on NEW object instantatiations.

[what-the-diff]

PR Summary

• New fix described for Last Stand enchantment in README.md
  The documentation has been updated to mention a fix for an issue where the Last Stand enchantment was being triggered prematurely.
• Added dependency in build.gradle
  The project now includes an additional compile-only dependency specified - openblocks-228816.
• New registration in UniversalTweaks.java
  We have included a new registration for event handling relating to OpenBlocks mod events. This will allow our app to better respond to certain OpenBlocks events.
• Toggle for Last Stand trigger fix in UTConfigMods.java
  Introduced a toggle field to enable or disable the new fix for triggering Last Stand enchantment.
• New mapping in UTMixinLoader.java
  The Mixin mapping has been extended to incorporate the latest modifications to openblocks and its characteristics.
• New event handler for Last Stand in UTOpenBlocksEvents.java
  Introduced a specific class to manage the Last Stand enchantment. This class includes a method to specifically handle this particular enchantment issue.
• Additional file for handling post-mitigation damage WrappedLivingHurtEvent.java
  Added a new file that further refines how we handle post-mitigation damage events.
• Mixin Binding in UTConfigMixin.java
  The LastStandEnchantmentsHandler is now allocated to the UTOpenBlocksEvents class thanks to a new binding via a mixin class.
• Alteration of hurt event handling in UTLastStandEnchantmentsHandlerMixin.java
  The onHurt() method has been modified to only handle LivingDamageEvent exclusive from LivingHurtEvent.
• New localization entry in en_us.lang
  Added a new translation for configuration options related to the universaltweaks and openblocks modes.
• Specification of mixins for openblocks in new JSON file
  Identified the mixins to be applied to the openblocks mod via a new JSON file.