HPCC-10699 Configuration: Add support for esp service plugins

  - add esp service plugin support to
     ./opt/HPCCSystems/componentfiles/plugins/<service_name>/<config files>

  - service plugins may require configuration files including:

      - buildset.xml : explicit services configured through ConfigMgr
         Installed into
         ./opt/HPCCSystems/componentfiles/configxml/plugins/<service_name>/

      - genenvrules.conf : explicit services that should not be
         generated by default. Installed into
         ./opt/HPCCSystems/componentfiles/configxml/plugins/<service_name>/

      - cgencomplist.xml : implicit services share an explicit service
         component name with a custom xsl, explict services define their
         own component name. Installed into
         ./opt/HPCCSystems/componentfiles/configxml/plugins/<service_name>/

      - esp_service_<service_name>.xsd : explicit services configured
         through ConfigMgr. Installed into
         ./opt/HPCCSystems/componentfiles/configxml/

      - esp_service_<service_name>.xsl : explicit and implicit services
         requires at a minimum binding info.  Refer to WS-SMC section in
         esp_service_WsSMC.xsl as an example of what is required.
         Installed into
         ./opt/HPCCSystems/componentfiles/configxml/atmark_temp/

Signed-off-by: Gleb Aronsky <gleb.aronsky@lexisnexis.com>