MD Extra plugins

Necessary extra plugins from https://moodle.org/plugins/

• Question type "algebra" qtype_algebra
• Question type "Regular expression short answer" qtype_regexp, with dependencies:
  • Question behaviour "RegExp Adaptive mode with Help" qbehaviour_regexpadaptivewithhelp
  • Question behaviour "RegExp Adaptive mode with Help (no penalties)" qbehaviour_regexpadaptivewithhelpnopenalty