jwk2pem file converter for integration certBot and micronaut-acme

micronaut-acme and certBot for LetsEncrypt

Problem: certbot generated file formats are different from micronaut-acme.

Java snippet can be used to convert certbot files to micronaut-acme format.

usage:

gradlew run --args="/pathToJwkAccountKey/private_key.json /pathToOutAccountKey/out.pem /pathToDomainPrivKey/privkey.pem /domainKeyOutPath/domainout.pem"