Introduce unit test for NSS OCSP/AIA fetching

net/data/ssl/scripts/aia-test.cnf

+CA_DIR=out
+CA_NAME=aia-test-root
+AIA_URL=http://aia-test.invalid
+
+[ca]
+default_ca = CA_root
+preserve   = yes
+
+[CA_root]
+dir           = ${ENV::CA_DIR}
+key_size      = 2048
+algo          = sha1
+database      = $dir/${ENV::CA_NAME}-index.txt
+new_certs_dir = $dir
+serial        = $dir/${ENV::CA_NAME}-serial
+certificate   = $dir/${ENV::CA_NAME}.pem
+private_key   = $dir/${ENV::CA_NAME}.key
+RANDFILE      = $dir/.rand
+default_days     = 3650
+default_crl_days = 30
+default_md       = sha1
+policy           = policy_anything
+unique_subject   = no
+copy_extensions  = copy
+
+[user_cert]
+basicConstraints       = critical, CA:false
+extendedKeyUsage       = serverAuth, clientAuth
+authorityInfoAccess    = caIssuers;URI:${ENV::AIA_URL}
+
+[ca_cert]
+basicConstraints       = critical, CA:true
+keyUsage               = critical, keyCertSign, cRLSign
+
+[policy_anything]
+# Default signing policy
+countryName            = optional
+stateOrProvinceName    = optional
+localityName           = optional
+organizationName       = optional
+organizationalUnitName = optional
+commonName             = optional
+emailAddress           = optional
+
+[req]
+default_bits       = 2048
+default_md         = sha1
+string_mask        = utf8only
+prompt             = no
+encrypt_key        = no
+distinguished_name = req_env_dn
+
+[req_env_dn]
+CN = ${ENV::CA_COMMON_NAME}
+