Add direct STL checkpointing

Initial checkin of STL checkpointing.  This checkin only covers the sequential
STLs, vector, list, deque, set, and multiset.  This checkin does include the
changes in Trick header files to include/exclude our STLs properly to make a
restartable checkpoint.

refs #206

trick_source/codegen/Interface_Code_Gen/FieldDescription.cpp

@@ -35,6 +35,8 @@ FieldDescription::FieldDescription(
   bitfield_word_offset(0) ,
   is_enum(0) ,
   is_record(0) ,
+  is_stl(0) ,
+  has_stl_clear(1) ,
   is_static(0) ,
   num_dims(0) ,
   array_sizes() {} ;
@@ -368,6 +370,22 @@ bool FieldDescription::isRecord() {
     return is_record ;
 }
 
+void FieldDescription::setSTL(bool yes_no) {
+    is_stl = yes_no ;
+}
+
+bool FieldDescription::isSTL() {
+    return is_stl ;
+}
+
+void FieldDescription::setSTLClear(bool yes_no) {
+    has_stl_clear = yes_no ;
+}
+
+bool FieldDescription::hasSTLClear() {
+    return has_stl_clear ;
+}
+
 void FieldDescription::setStatic(bool yes_no) {
     is_static = yes_no ;
 }