Add support for --cert #39
Description
With Apple Push Notification Service now requiring cert and private key, please consider adding support for -cert and --key and --key-type
Sample curl for APNS:
curl -v --header "apns-topic:appname.com.asdf" --header "apns-push-type: alert" --cert "apns.pem" --key "apnskey.pem" --key-type PEM --data '{"aps":{"alert":"test APNS"}}' --http2 https://api.push.apple.com/3/device/d757574cb975099e682c33084be41583aeb661d3293c3030a1c68572a39b0000
Yours is a useful project.
Thanks