More improvements to the Latvian resource grammar (motivated by PhrasebookLav)

- Few bug-fixes (agreement between Pron and ComplAP; C1 verb paradigm; how8much_IAdv / how8many_IDet).
- Differentiation between male and female pronouns.
- Irregular verbs now can have prefixes.
- Code refactoring.

lib/src/latvian/ExtraLav.gf

@@ -1,11 +1,27 @@
 --# -path=.:../abstract:../common:../prelude
 
-concrete ExtraLav of ExtraLavAbs = CatLav ** open ResLav in {
+concrete ExtraLav of ExtraLavAbs = CatLav ** open 
+  ParadigmsLav,
+  ParadigmsPronounsLav,
+  ResLav
+  in {
 
 flags
   coding = utf8 ;
 
 lin
+  to8uz_Prep = mkPrep "uz" Acc Dat ;
+
+  i8fem_Pron = mkPronoun_I Fem ;
+  we8fem_Pron = mkPronoun_We Fem ;
+
+  youSg8fem_Pron = mkPronoun_You_Sg Fem ;
+  youPol8fem_Pron = mkPronoun_You_Pol Fem ;
+  youPl8fem_Pron = mkPronoun_You_Pl Fem ;
+
+  they8fem_Pron = mkPronoun_They Fem ;
+  it8fem_Pron = mkPronoun_It_Sg Fem ;
+  
   GenNP np = {s = \\_,_,_ => np.s ! Gen ; d = Def} ;
 
   --ICompAP ap = {s = \\g,n => "cik" ++ ap.s ! Indef ! g ! n ! Nom } ;