[#225] Update KnownValue in Lorentz and use it in Indigo instead of TypeValue

Description

Problem: In Indigo we have the TypeValue a constraint that is simply Typeable a and Typeable (ToT a). However we sometimes have to use this with KnownValue a (or one of the constraints that include it) that already includes Typeable (ToT a).

Solution: Include Typeable a in KnownValue a and replace TypeValue and TypeValueClass with KnownValue.

Related issue(s)

Resolves #225 (closed)

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