Unable to scrape all troop data

[zengfung]

Current bugs:

• [x] Spells are not scraped because spell.level is not present -- to be fixed in #6
• [ ] Hero pets all have ID 0 -- to be fixed directly from package (https://github.com/mathsman5133/coc.py/issues/156)
• [x] Builder troops are not scraped because code currently does not call client.get_troop('<troop>', is_home_village = False) -- to be fixed in #10
• [x] Super troops data do not contain their corresponding original troop ID -- to be fixed in #6
• [x] Cooldown and duration data for super troops are not scraped -- to be fixed in #6