feat: add international honorifics to titles (#99)

Adds German/Dutch/Scandinavian (herr, frau, hr, dhr, mevr, mevrouw,
fru, frøken, vrouwe, etc.), French (monsieur, monseigneur), Portuguese
(senhor, senhora, senhorita), Spanish (señor, señora, señorita, sres,
srtas, etc.), and Italian (signor, signora, signorina, etc.) honorifics.

Omits 'senhoro' (not a real Portuguese word) and 'frou' (unrecognized
title). Skips 'fr' and 'mx' which were already present.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: derek73

nameparser/config/titles.py

@@ -230,6 +230,7 @@
     'designer',
     'detective',
     'developer',
+    'dhr',
     'diplomat',
     'dir',
     'director',
@@ -289,7 +290,11 @@
     'forester',
     'founder',
     'fr',
+    'frau',
     'friar',
+    'frk',
+    'frøken',
+    'fru',
     'gaf',
     'gen',
     'general',
@@ -312,6 +317,10 @@
     'heiress',
     'her',
     'hereditary',
+    'heren',
+    'herr',
+    'herren',
+    'herrn',
     'high',
     'highness',
     'his',
@@ -323,6 +332,7 @@
     'honorable',
     'honourable',
     'host',
+    'hr',
     'illustrator',
     'imam',
     'industrialist',
@@ -398,6 +408,9 @@
     'merchant',
     'met',
     'metropolitan',
+    'mevr',
+    'mevrouw',
+    'mevrouwe',
     'mg',
     'mgr',
     'mgysgt',
@@ -412,6 +425,8 @@
     'mobster',
     'model',
     'monk',
+    'monseigneur',
+    'monsieur',
     'monsignor',
     'most',
     'mountaineer',
@@ -538,7 +553,15 @@
     'security',
     'seigneur',
     'senator',
+    'senhor',
+    'senhora',
+    'senhorita',
     'senior',
+    'señor',
+    'señora',
+    'señores',
+    'señorita',
+    'señoritas',
     'senior-judge',
     'sergeant',
     'servant',
@@ -551,6 +574,10 @@
     'sheikh',
     'sheriff',
     'siddha',
+    'signor',
+    'signora',
+    'signore',
+    'signorina',
     'singer',
     'singer-songwriter',
     'sma',
@@ -569,6 +596,8 @@
     'sr',
     'sra',
     'srta',
+    'srtas',
+    'sres',
     'ssg',
     'ssgt',
     'st',
@@ -619,6 +648,7 @@
     'vizier',
     'vocalist',
     'voice',
+    'vrouwe',
     'warden',
     'warrant',
     'wing',