feat: several macros for working with the sasjs/server apis

tests/serveronly/ms_createfile.test.sas

@@ -0,0 +1,30 @@
+/**
+  @file
+  @brief Testing ms_createfile.sas macro
+
+  <h4> SAS Macros </h4>
+  @li ms_createfile.sas
+  @li mp_assert.sas
+  @li mp_assertscope.sas
+
+**/
+
+
+filename stpcode temp;
+data _null_;
+  file stpcode;
+  put '%put hello world;';
+run;
+
+options mprint;
+%let fname=%mf_getuniquename();
+
+%mp_assertscope(SNAPSHOT)
+%ms_createfile(/sasjs/tests/&fname..sas
+  ,inref=stpcode
+  ,mdebug=1
+)
+%mp_assertscope(COMPARE)
+
+
+