automate the cert renewal process

Script assumes user has ntru.
Script does not assume user has keygen and certgen enabled. 
If they do not, no certs will be updated as the purpose of this script is to update ALL certs without exception. Logic follows:

   if (ntru defined) {
      update certs, run config with ntru, enable certgen/keygen, run make check to generate ntru certs/key
      copy/paste ntru certs/key into certs directory
   }
   else (ntru undefined) {
      run config with ntru, enable certgen/keygen, run make check.
      if (ntru was found and is now defined) {
         copy/paste ntru certs/key into certs directory
         update the other certs too
      }
      else (ntru still undefined) {
         do nothing, alert user of lack of ntru, tell them which one to clone from gihub.
         after which, run this script again to update ALL certs at one time.
      } end if
   } end if