Add data for Abilities till gen 7

[jitinder]

Added a Model and Data for all abilities till gen 7 by parsing data from PokeAPI

[hungps]

1. Are you planning to apply this to the Moves tabs?
2. I'm currently moving data to gist and fetch data from there. So if you can create a json version like the pokemons.json and items.json, it will be awesome

[jitinder]

I was planning to add this for the future, whenever we need to use abilities :P Will put it as a JSON instead and push

[jitinder]

@scitbiz Have a look at the JSON and host it as a gist as per your requirement. Its formatted using jsonformatter for your convenience...

[hungps]

@jitinder Awesome, thanks!