Convert many RGL modules from Latin-1 to UTF-8 to speed up compilation

Also add flags coding=utf8 to silence warnings.

lib/src/italian/ConstructionIta.gf

@@ -4,6 +4,7 @@ concrete ConstructionIta of Construction = CatIta **
   open SyntaxIta, SymbolicIta, ParadigmsIta, 
        (L = LexiconIta), (E = ExtraIta), (I = IrregIta), (R = ResIta), (C = CommonRomance),
        Prelude in {
+flags coding=utf8 ;
 
 
 lin

lib/src/italian/DiffIta.gf

@@ -1,9 +1,9 @@
 --# -path=.:../romance:../abstract:../common:prelude
---# -coding=latin1
 
 instance DiffIta of DiffRomance = open CommonRomance, PhonoIta, BeschIta, Prelude in {
 
   flags optimize=all ;
+    coding=utf8 ;
 
   param 
     Prepos = P_di | P_a | P_da | P_in | P_su | P_con ;
@@ -154,7 +154,7 @@ instance DiffIta of DiffRomance = open CommonRomance, PhonoIta, BeschIta, Prelud
 
     quelPron : AAgr => Str = aagrForms "quale" "quale" "quali" "quali" ;
 
-    partQIndir = "ciò" ;
+    partQIndir = "ciò" ;
 
     reflPron : Number -> Person -> Case -> Str = 
       let 

lib/src/italian/DocumentationItaFunctor.gf

@@ -11,6 +11,7 @@ incomplete concrete DocumentationItaFunctor of Documentation = CatIta ** open
   Prelude,
   HTML
 in {
+flags coding=utf8 ;
 
 
 lincat

lib/src/italian/MorphoIta.gf

@@ -1,5 +1,4 @@
 --# -path=.:../romance:../common:../../prelude
---# -coding=latin1
 
 --1 A Simple Italian Resource Morphology
 --
@@ -13,6 +12,7 @@ resource MorphoIta = CommonRomance, ResIta **
   open PhonoIta, Prelude, Predef in {
 
   flags optimize=all ;
+    coding=utf8 ;
 
 
 
@@ -67,7 +67,7 @@ oper
        ; g = Fem} ;
      _ + "e" => {s = numForms vino (vin + "i")
        ; g = Masc} ;
-     _ + "à" | "ù" => {s = numForms vino vino
+     _ + "à" | "ù" => {s = numForms vino vino
        ; g = Fem} ;
      _ => {s = numForms vino vino
        ; g = Masc}

lib/src/italian/ParadigmsIta.gf

@@ -1,5 +1,4 @@
 --# -path=.:../romance:../common:../abstract:../../prelude
---# -coding=latin1
 
 --1 Italian Lexical Paradigms
 --
@@ -34,6 +33,7 @@ resource ParadigmsIta = BeschIta **
     CatIta in {
 
   flags optimize=all ;
+    coding=utf8 ;
 
 --2 Parameters 
 --
@@ -149,13 +149,13 @@ oper
   mkA : overload {
 
 -- For regular adjectives, all forms are derived from the
--- masculine singular. Comparison is formed by "più".
+-- masculine singular. Comparison is formed by "più".
 
     mkA : (bianco : Str) -> A ; -- predictable adjective
 
 -- Five forms are needed in the worst
 -- case (masc and fem singular, masc plural, adverbial), given that
--- comparison is formed by "più".
+-- comparison is formed by "più".
 
     mkA : (solo,sola,soli,sole,solamente : Str) -> A ; -- irregular adjective
 
@@ -367,7 +367,7 @@ oper
    {s = table {Posit => a.s ! Posit ; _ => b.s ! Posit} ; 
     isPre = a.isPre ; lock_A = <>} ;
   compADeg a = 
-    {s = table {Posit => a.s ! Posit ; _ => \\f => "più" ++ a.s ! Posit ! f} ; 
+    {s = table {Posit => a.s ! Posit ; _ => \\f => "più" ++ a.s ! Posit ! f} ; 
      isPre = a.isPre ;
      lock_A = <>} ;
   regADeg a = compADeg (regA a) ;
@@ -426,7 +426,7 @@ oper
   mkVQ  v = v ** {lock_VQ = <>} ;
   mkV2Q v p = mk2V2 v p ** {lock_V2Q = <>} ;
 
-  mmkV3    : V -> Prep -> Prep -> V3 ;  -- parler, à, de
+  mmkV3    : V -> Prep -> Prep -> V3 ;  -- parler, à, de
   mmkV3 v p q = v ** {c2 = p ; c3 = q ; lock_V3 = <>} ;
   dirV3 v p = mmkV3 v accusative p ;
   dirdirV3 v = dirV3 v dative ;
@@ -437,7 +437,7 @@ oper
   mkV3 = overload {
     mkV3 : V -> V3 = dirdirV3 ;               -- donner,_,_
     mkV3 : V -> Prep -> V3 = dirV3 ;          -- placer,_,sur
-    mkV3 : V -> Prep -> Prep -> V3 = mmkV3    -- parler, à, de
+    mkV3 : V -> Prep -> Prep -> V3 = mmkV3    -- parler, à, de
     } ;
 
   mkV2S = overload {

lib/src/italian/PhonoIta.gf

@@ -1,5 +1,5 @@
---# -coding=latin1
 resource PhonoIta = open Prelude in {
+  flags coding=utf8 ;
 
 --3 Elision
 --
@@ -8,7 +8,7 @@ resource PhonoIta = open Prelude in {
 
 oper 
   vocale : Strs = strs {
-    "a" ; "e" ; "h" ; "i" ; "o" ; "u" ; "è" ; "y" ; "A" ; "E" ; "I" ; "O" ; "U" ; "H"
+    "a" ; "e" ; "h" ; "i" ; "o" ; "u" ; "è" ; "y" ; "A" ; "E" ; "I" ; "O" ; "U" ; "H"
     } ;
 
   sImpuro : Strs = strs {

lib/src/italian/TerminologyIta.gf

@@ -10,6 +10,7 @@ concrete TerminologyIta of Terminology = CatIta ** open
   Prelude
 
 in {
+flags coding=utf8 ;
 
 
 lincat