started Czech with a mini-like coverage

src/czech/LangCze.gf

@@ -0,0 +1,10 @@
+--# -path=.:../abstract:../common:../api
+
+concrete LangCze of Lang = 
+  GrammarCze,
+  LexiconCze
+--  ,ConstructionCze
+--  ,DocumentationCze --# notpresent
+  ** {
+
+}