Add more instances that are included in base

[recursion-ninja]

The Validation e a type is missing the following instances:

• Eq e => Eq1 (Validation e)
• Eq2 Validation
• Ord e => Ord1 (Validation e)
• Ord2 Validation
• Show e => Show1 (Validation e)
• Show2 Validation
• (Read a, Read e) => Read (Validation e a)
• Read e => Read1 (Validation e)
• Read2 Validation

Since these are wrapped into base, they should be defined for Validation e a.