Add ruby-necromancer version 0.5.0 package.
Necromancer
> Conversion from one object type to another with a bit of black magic.
Necromancer provides independent type conversion component for [TTY]
(https://github.com/piotrmurach/tty) toolkit.
## Motivation
Conversion between Ruby core types frequently comes up in projects but is solved by half-baked solutions. This library aims to provide an independent and extensible API to support a robust and generic way to convert between core Ruby types.
## Features
* Simple and expressive API
* Ability to specify own converters
* Ability to compose conversions out of simpler ones
* Support conversion of custom defined types
* Ability to specify strict conversion mode
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