feat: new macros (mp_reseterror and mp_init), new datetime format added to mp_getcols, and stub prepared for mp_makedata

tests/testinit.sas

@@ -2,11 +2,17 @@
   @file
   @brief init file for tests
 
+  <h4> SAS Macros </h4>
+  @li mp_init.sas
+
 **/
 
 /* location in metadata or SAS Drive for temporary files */
 %let mcTestAppLoc=/Public/temp/macrocore;
 
+/* set defaults */
+%mp_init()
+
 %macro loglevel();
   %if &_debug=2477 %then %do;
     options mprint;