Enable code generation for Drifter modules with KSP plugin

[teogor]

Auto-generate Kotlin Classes for Drifter Interaction via Annotations

This pull request introduces a powerful new feature: automatic generation of Kotlin classes based on specific annotations within your code. This significantly simplifies interaction with Drifter and streamlines development.

Changes:

• Implements KSP (Kotlin Symbol Processor) and runtime modules for code generation.
• Generates Kotlin classes representing Drifter modules and methods based on annotations like @DrifterModule and @DrifterUnityMethod.
• Automatically handles parameter mapping and data conversion through annotations and custom encoders.

Generated Classes (Examples):

• AquariumModule: Represents the "Aquarium" Drifter module with properties and methods based on annotations in dev.teogor.drifter.demo package.
• AquariumMethods: Interface providing methods based on @DrifterUnityMethod annotations.
• AquariumActionMappings: Static class with utility methods and constants for interacting with generated classes.
• AquariumMessageSender: Class simplifying communication with the "Aquarium" module in Unity.

Benefits:

• Reduced boilerplate code: Eliminates the need for manual class creation and mapping configurations.
• Improved maintainability: Ensures consistency and reduces potential errors in manually written code.
• Enhanced developer experience: Simplifies Drifter interaction and makes it more approachable.