Update makefile and add two tests.

method-as-member-variable:

This test identifies a missing feature.  That being, when there is a
an SC_MODULE instantiated within an SC_MODULE as a member variable, then it is not recognized.  The reason is because there is no second pass after the initial sc_module collection.

tests/Makefile.systemc

+../Makefile.systemc
\ No newline at end of file

tests/method-as-member-variable.cpp

+#include "systemc.h"
+#include <iostream>
+
+SC_MODULE( member_variable ) {
+  void print() {
+    std::cout << "This is an SC object as member variable" << std::endl;
+  }
+
+  void var() {
+    std::cout << "I'm var?" << std::endl;
+  }
+
+  SC_CTOR( member_variable) {
+  SC_METHOD(var);
+  }
+};
+
+SC_MODULE( test ){
+    sc_in<int> in;
+    sc_out<int> out;
+    sc_signal<int> test_signal;
+    member_variable mv;
+
+    void entry_function_1() {
+      std::cout << "ef1: " << std::endl;
+ //     mv.print();
+    }
+
+    SC_CTOR( test ): mv("mv") {
+        SC_METHOD(entry_function_1);
+    }
+};
+
+int sc_main(int argc, char *argv[]) {
+    sc_signal<int> sig1;
+    test test_instance("testing");
+    test_instance.in(sig1);
+    test_instance.out(sig1);
+
+    sc_start(100, SC_NS);
+    return 0;
+}

tests/template-method.cpp

+#include "systemc.h"
+#include <iostream>
+
+template<typename FP, int DIM>
+SC_MODULE( test ){
+    sc_in<int> in;
+    sc_out<int> out;
+    sc_signal<int> test_signal;
+    void entry_function_1() {
+      std::cout << "value: " << DIM << std::endl;
+    }
+
+    SC_CTOR( test ) {
+        SC_METHOD(entry_function_1);
+    }
+};
+
+int sc_main(int argc, char *argv[]) {
+    sc_signal<int> sig1;
+    test<int,5> test_instance("testing");
+    test_instance.in(sig1);
+    test_instance.out(sig1);
+
+    sc_start(100, SC_NS);
+    return 0;
+}