(Por) several minor updates (#49)

* fix linearization of either/or

* (Por) minor updates
- correction in Lexicon
- documentation in Morpho
- rm variants from Structural

* (Por) correct references to extinct opers

* (Por) rm Spa remnants

* (Abs) rm reference to Extra in Structural -- use Extend instead

* (Por) ExtendPor
- use Extend instead of Extra in All
- use Extend funs in Extra whenever possible

* trigger CI

* (Por) Diff
- sort opers
- rm old commented code
- tidy things up
- no semantic changes

* (Por) add IrregBesch module with verbs using Besch paradigms
- Besch :
  - use hack to prevent runtime failure with glue in in vars output
  - rm paradigm numbers
- add IrregBeschPor, verbs that use only bescherelle paradigms
  - use them in Construction, Structural, Idiom, Extra
- Diff and Paradigms had (almost) the same oper (verboV/verbBeschH),
  so combine them into one and use it

* (Por) update functions to use new Irreg suffix and resolve name conflicts

src/portuguese/ExtendPor.gf

@@ -0,0 +1,68 @@
+--# -path=alltenses:../common:../abstract
+
+concrete ExtendPor of Extend =
+  CatPor ** ExtendFunctor -
+   [
+     iFem_Pron, weFem_Pron, youFem_Pron, youPlFem_Pron, youPolPl_Pron, youPolFem_Pron, youPolPlFem_Pron, theyFem_Pron,
+       ProDrop,
+       PassVPSlash, ExistsNP
+   ]                   -- put the names of your own definitions here
+  with
+    (Grammar = GrammarPor), (Syntax = SyntaxPor) **
+  open
+    GrammarPor,
+    ResPor,
+    MorphoPor,
+    Coordination,
+    Prelude,
+    ParadigmsPor,
+    (S = StructuralPor) in {
+
+  lin
+    ProDrop p = {
+      s = table {
+        Nom => let pn = p.s ! Nom in {c1 = pn.c1 ; c2 = pn.c2 ; comp = [] ; ton = pn.ton} ;
+        c => p.s ! c
+        } ;
+      a = p.a ;
+      poss = p.poss ;
+      hasClit = p.hasClit ;
+      isPol = p.isPol ;
+      isNeg = False
+      } ;
+
+  lin
+    PassVPSlash vps =
+      let auxvp = predV copula
+      in
+      insertComplement (\\a => let agr = complAgr a in vps.s.s ! VPart agr.g agr.n) {
+        s = auxvp.s ;
+        agr = auxvp.agr ;
+        neg = vps.neg ;
+        clit1 = vps.clit1 ;
+        clit2 = vps.clit2 ;
+        clit3 = vps.clit3 ;
+        isNeg = vps.isNeg ;
+        comp  = vps.comp ;
+        ext   = vps.ext
+      } ;
+
+    ExistsNP np =
+      mkClause [] True False np.a
+      (insertComplement (\\_ => (np.s ! Nom).ton)
+         (predV (mkV "existir"))) ;
+
+  lin
+    -- Romance
+    iFem_Pron = pronAgr S.i_Pron Fem Sg P1 ;
+    weFem_Pron = pronAgr S.we_Pron Fem Pl P1 ;
+    youFem_Pron = pronAgr S.youSg_Pron Fem Sg P3 ;
+    youPlFem_Pron = pronAgr S.youPl_Pron Fem Pl P3 ;
+    youPolPl_Pron = mkPronoun "vós" "vos" "vos" "vós"
+      "vosso" "vossa" "vossos" "vossas"
+      Masc Pl P2 ;
+    youPolFem_Pron = pronAgr S.youPol_Pron Fem Sg P2 ;
+    youPolPlFem_Pron = pronAgr youPolPl_Pron Fem Pl P2 ;
+    theyFem_Pron = mkPronFrom S.they_Pron "elas" "as" "lhes" "elas" Fem Pl P3 ;
+
+} ;