Implement new exercise: dnd-character

[ErikSchierboom]

There is a new exercise, dnd-character, which data can be found here: https://github.com/exercism/problem-specifications/tree/master/exercises/dnd-character

To implement the dnd-character exercise, the following needs to be done:

• Create a directory for the new exercise in the exercises directory (note: this has to match the exact exercise name).
• Add a new entry to the config.json file.
• Create a generator to automatically convert the canonical data to a test file. For more information on how to do this, check the generators docs.
• Create a stub implementation file that contains the code necessary to compile (which are the methods called by the test file), but lacks an implementation. (see this example).
• Create an implementation file that passes all the tests.
• Create a project file for the project (you can probably best copy and modify one of the existing projects).

Note that this exercise should be implemented using property-based tests where possible. An example of an existing exercises that uses property-based tests is the diamond exercise.

[abecerramatias]

May I take this one?

[ErikSchierboom]

Sure!

[ErikSchierboom]

Note that I edited the original issue and added this line:

Note that this exercise should be implemented using property-based tests where possible. An example of an existing exercises that uses property-based tests is the diamond exercise.

[ErikSchierboom]

I'm working on this.