[ADD] lang_LT: new currencies, feminine numerals

- Adding feminine numeric forms.
- Implementing new currency forms: USD, GBP, PLN, RUB (with feminine
	numeric forms).

num2words/lang_LT.py

@@ -22,6 +22,18 @@ from .utils import get_digits, splitbyx
 
 ZERO = ('nulis',)
 
+ONES_FEMININE = {
+    1: ('viena',),
+    2: ('dvi',),
+    3: ('trys',),
+    4: ('keturios',),
+    5: ('penkios',),
+    6: ('šešios',),
+    7: ('septynios',),
+    8: ('aštuonios',),
+    9: ('devynios',),
+}
+
 ONES = {
     1: ('vienas',),
     2: ('du',),
@@ -73,11 +85,25 @@ THOUSANDS = {
     10: ('naintilijonas', 'naintilijonai', 'naintilijonų'),
 }
 
+GENERIC_CENTS = ('centas', 'centai', 'centų')
+
 
 class Num2Word_LT(Num2Word_Base):
     CURRENCY_FORMS = {
-        'LTL': (('litas', 'litai', 'litų'), ('centas', 'centai', 'centų')),
-        'EUR': (('euras', 'eurai', 'eurų'), ('centas', 'centai', 'centų')),
+        'LTL': (('litas', 'litai', 'litų'), GENERIC_CENTS),
+        'EUR': (('euras', 'eurai', 'eurų'), GENERIC_CENTS),
+        'USD': (('doleris', 'doleriai', 'dolerių'), GENERIC_CENTS),
+        'GBP': (
+            ('svaras sterlingų', 'svarai sterlingų', 'svarų sterlingų'),
+            ('pensas', 'pensai', 'pensų')
+        ),
+        'PLN': (
+            ('zlotas', 'zlotai', 'zlotų'),
+            ('grašis', 'grašiai', 'grašių')),
+        'RUB': (
+            ('rublis', 'rubliai', 'rublių'),
+            ('kapeika', 'kapeikos', 'kapeikų')
+        ),
     }
 
     def setup(self):
@@ -114,7 +140,10 @@ class Num2Word_LT(Num2Word_Base):
     def to_ordinal(self, number):
         raise NotImplementedError()
 
-    def _int2word(self, n):
+    def _cents_verbose(self, number, currency):
+        return self._int2word(number, currency == 'RUB')
+
+    def _int2word(self, n, feminine=False):
         if n == 0:
             return ZERO[0]
 
@@ -139,7 +168,10 @@ class Num2Word_LT(Num2Word_Base):
             if n2 == 1:
                 words.append(TENS[n1][0])
             elif n1 > 0:
-                words.append(ONES[n1][0])
+                if (i == 1 or feminine and i == 0) and n < 1000:
+                    words.append(ONES_FEMININE[n1][0])
+                else:
+                    words.append(ONES[n1][0])
 
             if i > 0:
                 words.append(self.pluralize(x, THOUSANDS[i]))