Provides 3 convenience functions to aid with SSL connections to public NervesHub instances:
NervesHubCAStore.file_path/0
-> path to generated cacerts.pemNervesHubCAStore.certificates/0
-> Reads the cacerts.pem in as a list of OTP certificatesNervesHubCAStore.cacerts/0
-> Reads the cacerts.pem in as a list of DER encoded certificates