Add support for registering a Simulink Enumeration with jTET.

To support enumerations, jTET needs to know about the contents of the
enumeration.  TET now provides a function to do show, taking in the name of
an enumeration, and registering the various details with jTET automatically.

TET.m

@@ -12,6 +12,35 @@ classdef (Sealed) TET < handle
         function variableParser = getVariableParser(obj)
                 variableParser = obj.variableParser;
         end
+
+        %% Register an enumeration type with the TET.
+        %
+        %  This function registers a Simulink compatibile enumeration type
+        %  with the TET.  This allows the enumerated value to be used in
+        %  tables.
+        %  Note: the enumeration must derive from Simulink.IntEnumType
+        %  to be used in the Simulink model.
+        %  Note: each enumerated value must have a distinct value,
+        %  otherwise the type checker may allow invalid tables.
+        %
+        %  obj - This object
+        %  enum - A string representing the enumeration type name.
+        function type = registerEnumeration(obj, enum)
+            enumValues = enumeration(enum);
+            [~, enumConstants] = enumeration(enum);
+            if size(enumValues, 1) ~= size(enumConstants, 1)
+                throw(MException('TET:registerEnumeration', ...
+                  'Enumeration constants share the same concrete value'));
+            end
+
+            type = ca.mcscert.jtet.expression.EnumerationVariableType(enum);
+            typeEnumConstants = type.enumerationValues;
+            for i=1:size(enumConstants, 1)
+                java.lang.String(enumConstants{i})
+                typeEnumConstants.add(java.lang.String(enumConstants{i}));
+            end
+            obj.variableParser.addCustomType(enum, type);
+        end
     end
 
     methods (Access = private)