Allow API to get/set type of status report

The existing EN_setstatusreport function only allows one to set the level of status reporting and not retrieve this value. A new EN_STATUS_REPORT constant was added, to be used with EN_setoption and EN_getoption, to provide read/write access to the level of status reporting.

include/epanet2.pas

@@ -191,6 +191,8 @@ const
  EN_CONCENLIMIT  = 22;
  EN_DEMANDPATTERN = 23;
  EN_EMITBACKFLOW  = 24;
+ EN_PRESS_UNITS   = 25;
+ EN_STATUS_REPORT = 26;
 
  EN_LOWLEVEL   = 0;   { Control types }
  EN_HILEVEL    = 1;