Bug 24063: Add Sami language characters to Zebra

Some Sami languages need few more characters to be mapped, or
are otherwise very hard to search for.

Test plan:

1) Catalogue a new record with title "Ǩoǯeŋa"
2) Make sure zebra indexed that record, then try to search for
   it with the text "kozena"
3) Apply patch
4) Redo 2, now the record should be found.

Signed-off-by: Pasi Kallinen <pasi.kallinen@koha-suomi.fi>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Joy Nelson <joy@bywatersolutions.com>
(cherry picked from commit 2ef69633d1)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>

etc/zebradb/etc/word-phrase-utf.chr

@@ -219,6 +219,8 @@ map ṉ			n
 map Ṉ			n
 map ṇ			n
 map Ṇ			n
+map Ŋ			n
+map ŋ			n
 # T
 map ṭ			t
 map Ṭ			t
@@ -263,6 +265,8 @@ map ƶ			z
 map Ƶ			z
 map Ž			z
 map ž			z
+map Ǯ			z
+map ǯ			z
 #C
 map ç			c
 map Ç			c
@@ -290,6 +294,8 @@ map ḵ			k
 map Ḵ			k
 map Ḱ			k
 map ḱ			k
+map Ǩ			k
+map ǩ			k
 # Y
 map ý			y
 map Ý			y