RG and Phrasebook fixes

- added a paradigm for alternative plurals
- fixed usage of alternative plurals in Numerals
- added a distinction between numerals and posessive pronouns
- verb omission and appropriate cases in some uses of to be/to have 
- fixed declination of personal names
- added a gender parameter to pronouns (similar to Polish RG)
- vowel insertion before short adjective suffix
- don't generate short forms for relative adjectives (might need lexicon update)
- minor Phrasebook fixes

lib/src/russian/ExtraRus.gf

@@ -1,3 +1,16 @@
-concrete ExtraRus of ExtraRusAbs = CatRus ** {
-flags coding=utf8 ;
+concrete ExtraRus of ExtraRusAbs = CatRus ** 
+  open ResRus, MorphoRus, (P = ParadigmsRus), Prelude, NounRus in {
+  flags optimize=all ; coding=utf8 ;
+
+lin
+  have_V3 = P.mkV3 (P.mkV P.imperfective "" "" "" "" "" "" "был" "будь" "есть") "" "у" Nom Gen;
+
+  have2_V3 = P.mkV3 (P.mkV P.imperfective "есть" "есть" "есть" "есть" "есть" "есть" "был" "будь" "есть") "" "у" Nom Gen;
+
+  have_not_V3 = P.mkV3 (P.mkV P.imperfective "нет" "нет" "нет" "нет" "нет" "нет" "не было" "не будь" "нет") "" "у" Gen Gen;
+
+  be_V3 = P.mkV3 (P.mkV P.imperfective "" "" "" "" "" "" "был" "будь" "") "" "" Nom Dat;
+
+  to2_Prep = { s = "в" ; c = Acc };
+
 }