Remove all interning

[theotherian]

We're currently using Immutables interning for at least 3 types: Address, XAddress and XrpCurrencyAmount (all of which are in Wrappers in the model package).

Doing this causes a few issues:

• Increased memory usage due to data that is both sparse and temporary in nature being long lived
• Serialization issues in Jackson due to @JsonCreator ignored when deserializing map keys FasterXML/jackson-databind#2158 and String-based Map key deserializer is not deterministic when there is no single arg constructor FasterXML/jackson-databind#3143

We need to stop doing this. That said, this will cause backwards compatibility issues unless you have @Value.Immutable(builder = true) in your annotation (despite true being the default) as, at least in Wrappers, removing intern = true results in the builder() method disappearing.

[theotherian]

From looking at the code, it appears to only be these three types.