Golang restore ecdsa key-pair from private key hex and generate bitcoin address

You can get test private key from here:

1. https://gobittest.appspot.com/Address for uncompressed address
2. https://bitcore.io/playground/#/address for compressed address

Learn more about compressed and uncompressed address:

1. https://bitcoin.stackexchange.com/questions/69315/how-are-compressed-pubkeys-generated
2. https://bitcointalk.org/index.php?topic=2185929.msg21939806#msg21939806
3. https://bitcoin.stackexchange.com/questions/3059/what-is-a-compressed-bitcoin-key