added template for implementing new test cases

matlab/tests/aaa_template_test_cases.m

+% test case for function 
+
+%purpose: 
+
+%oracle:  
+
+clear all             %clear workspace 
+close all
+cd ..                 %move to functions directory           
+
+%initialize inputs
+
+%execute function
+
+cd tests              %go back to tests directory
+
+%verify output
+if 
+    error('error in function ')
+else
+    disp('function  ok')
+end
\ No newline at end of file