add more time expressions to ConstructionJpn, and fill SymbolJpn (might be wrong though) functions.

src/api/SymbolicJpn.gf

@@ -0,0 +1,5 @@
+--# -path=.:../japanese:../common:../abstract:../prelude
+
+resource SymbolicJpn = Symbolic with 
+  (Symbol = SymbolJpn),
+  (Grammar = GrammarJpn) ;