Fix checksummed addresses for shutter

[yabirgb]

Used this script to checksum all the addresses

from eth_utils import to_checksum_address
import csv

data = []

with open('/Users/yabirgb/Library/Application Support/rotki/develop_data/users/airdrops/shutter.csv') as f:
    reader = csv.DictReader(f) # read rows into a dictionary format
    for row in reader:
        data.append((to_checksum_address(row['owner']), row['amount']))

with open('shutter.csv', 'w') as f:
    writer = csv.writer(f, delimiter=',')
    writer.writerow(['owner', 'amount'])
    writer.writerows(data)