[GraphQL/Type Filter][EASY] Shorter test output (MystenLabs#15713)

## Description

Implement `Display` for the various cascading filters to make the test
output easier to understand.

## Test Plan

```
sui-graphql-rpc$ cargo nextest run -- type_filter
```

## Stack

- MystenLabs#15661 
- MystenLabs#15695 
- MystenLabs#15698 
- MystenLabs#15699 
- MystenLabs#15701
- MystenLabs#15710 
- MystenLabs#15711 
- MystenLabs#15712