Catch

• Add a catch command. It takes the name of a Pokemon as an argument. Example usage:

Pokedex > catch pikachu
Throwing a Pokeball at pikachu...
pikachu escaped!
Pokedex > catch pikachu
Throwing a Pokeball at pikachu...
pikachu was caught!

• Be sure to print the Throwing a Pokeball at <pokemon>... message before determining if the Pokemon was caught or not.
• Use the Pokemon endpoint to get information about a Pokemon by name.
• Give the user a chance to catch the Pokemon using the math/rand package.
• You can use the pokemon's "base experience" to determine the chance of catching it. The higher the base experience, the harder it should be to catch.
• Once the Pokemon is caught, add it to the user's Pokedex. I used a map[string]Pokemon to keep track of caught Pokemon.
• Test the catch command manually - make sure you can actually catch a Pokemon within a reasonable number of tries.

Run and submit the CLI tests.