[core][Android] Generate bindings for custom converters (#21023)

# Why

Added a way for users to add a custom converter for any type.

# How

To achieve the desired developer experience, I ut

[core][Android] Generate bindings for custom converters (#21023)

# Why

Added a way for users to add a custom converter for any type.

# How

To achieve the desired developer experience, I utilized an annotation processor that produces a connection between user functions that provide a converter and an internal `TypeConverterProvider` class that handles all converters. This connection is established by generating a new class with a single method responsible for invoking the user's implementation. To prevent interference with any existing package, this newly generated class is placed in a prefixed package. However, a downside to this approach is that it has a global impact, as each package will be aware of the converter.

# Test Plan

Usage:
```kotlin
class CustomType {
// ...
}

@ConverterBinder
fun converter(): TypeConverter<CustomType> {
return object : TypeConverter<CustomType>() {
override fun convert(value: Any?): CustomType? {
// converter body
}
}
}
```

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