Fix Null Ingredient for Modular Magic

[WaitingIdly]

changes in this PR:

• add modular magic (and modular machinery) as optional deps for the buildscript.
• fix multiple of modular magic's renderers from throwing an NPE when the ingredient being rendered is null (default: true).
• add a comment indicating that the UTToolCrystalPropertiesMixin was created by me (whoops!).

related issues: Frinn38/Modular-Magic#25, Divine-Journey-2/Divine-Journey-2#940

[what-the-diff]

PR Summary

• Addition of a Specially-Designated README Section: Our documentation now has additional details on how to address an error (Null Pointer Exception) that occurs when trying to process an 'empty' or 'null' ingredient.

• Inclusion of New Dependencies: This code relies on 'modular-machinery' and 'modular-magic' to function, so we've added those into our dependency file (dependencies.gradle).

• Debugging Capability For Modular Magic: We've made it easier to troubleshoot the 'Modular Magic' part of our code by turning on a debugger in our properties file (gradle.properties).

• Special Configuration Class For Modular Magic: A new class (ModularMagicCategory) has been set up in UTConfigMods.java to manage all controls related to the integration with Modular Magic, including an option to handle the Null Ingredient issue.

• Implementation of Mixin Checks: We've added in several check systems (in UTAspectRendererMixin, UTAuraRendererMixin, UTConstellationRendererMixin, UTDemonWillRendererMixin) to ensure that any 'empty' ingredients are detected sooner and don't cause further issues with rendering.

• Enhancement of Regional Language Support: We've updated our language file (en_us.lang) to fully support the new integration with Modular Magic.

• Mixin Configuration File Generation: We've created a separate configuration file (mixins.mods.modularmagic.nullingredient.json) which details the 'mixin' commands to be used with Modular Magic.