Use Ragel generated RFC-5321/RFC-6531 parsrr

Mailbox address parser from <https://github.com/gene-hightower/smtp-address-validator>

Author: Gene Hightower

CMakeLists.txt

@@ -23,6 +23,7 @@ endif()
 
 # the library
 add_library(nlohmann_json_schema_validator
+    src/smtp-address-validator.cpp
     src/json-schema-draft7.json.cpp
     src/json-uri.cpp
     src/json-validator.cpp
@@ -153,4 +154,4 @@ if(JSON_VALIDATOR_INSTALL)
         DESTINATION
             ${INSTALL_CMAKE_DIR}
         )
-endif()
+endif()