DtMmdb: move to lib directory as a standalone library.

cde/lib/DtMmdb/StyleSheet/defParser.yy

@@ -8,8 +8,6 @@
 #include "Debug.h"
 #include "FeatureDefDictionary.h"
 
-#define alloca(x)       (malloc(x))
-
 def_list_t* g_def_list = 0;
 
 extern void yyerror(char*);

cde/lib/DtMmdb/StyleSheet/style.yy

@@ -22,9 +22,6 @@
 #include "HardCopy/autoNumberFP.h"
 extern autoNumberFP gAutoNumberFP;
 
-
-#define alloca(x)       (malloc(x))
-
 extern void yyerror(char*);
 extern int yylex();