(Pes) mkN, ApposN, animacy, compound nouns (#185)

* Add an mkN instance for nouns with unexpected possessive stem
* Rename inanimate and animate to nonhuman and human (old ones kept in 
the hidden part of API)
* Fix john_PN's animacy
* Add an instance of cmpdN with ezafe
* Add ApposNP + some lex. fixes

src/persian/ExtendPes.gf

@@ -2,7 +2,7 @@
 
 concrete ExtendPes of Extend =
   CatPes ** ExtendFunctor - [
-    GenNP
+    GenNP, ApposNP
     ]
   with (Grammar=GrammarPes)
   ** open Prelude, ResPes in {
@@ -14,4 +14,8 @@ lin
     s = \\num => np.s ! Bare -- possesser is unmarked; https://sites.la.utexas.edu/persian_online_resources/language-specific-grammar/ezfe/
   } ;
 
+  -- : NP -> NP -> NP
+  ApposNP np1 np2 = np1 ** {
+    s = \\m => np1.s ! m ++ np2.s ! m
+  } ;
 }