Integrated Boolean and DateTime as core types

Src/Data/Myc.Data.Keyword.pas

@@ -119,9 +119,6 @@ begin
     FLock := TSpinLock.Create(false);
     FRegistry := TDictionary<string, Integer>.Create;
     FReverseMap := TList<IKeyword>.Create;
-
-    Intern('false');
-    Intern('true');
 end;
 
 class destructor TKeywordRegistry.Destroy;