add basic farsi support

[HKalbasi]

Changes proposed in this pull request:

• add basic farsi support.

Status

• READY
• HOLD
• WIP (Work-In-Progress)

How to verify this change

You can check tests if you know Farsi.

Additional notes

This motivates me.

[coveralls]

Pull Request Test Coverage Report for Build 2799369812

• 117 of 118 (99.15%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.04%) to 96.349%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
num2words/lang_FA.py	76	77	98.7%

Totals
Change from base Build 2798639601:	0.04%
Covered Lines:	6831
Relevant Lines:	7014

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💛 - Coveralls

[erozqba]

@HKalbasi could you please, add some tests for the missing lines on the coverage https://coveralls.io/builds/35770814/source?filename=num2words%2Flang_FA.py

[HKalbasi]

@erozqba Done.

[erozqba]

@HKalbasi has you can see the tests are failing, could you fix them, pelase?

[HKalbasi]

Just one of them remains, But I don't know what is the problem and how to solve it. Maybe it is due to python2 problem with unicode?

[mromdhane]

@HKalbasi The test failed: Can you check it please

`FAIL: test_ordinal (tests.test_fa.Num2WordsFATest)

---

Traceback (most recent call last):

File "/home/travis/build/savoirfairelinux/num2words/tests/test_fa.py", line 43, in test_ordinal

'بیست و سوم'

AssertionError: '\xd8\xa8\xdb\x8c\xd8\xb3\xd8\xaa \xd9\x88 \xd8\xb3\xd9\x87\xd9\x85' != '\xd8\xa8\xdb\x8c\xd8\xb3\xd8\xaa \xd9\x88 \xd8\xb3\xd9\x88\xd9\x85`

[HKalbasi]

I had seen it. But I don't know what those cryptic characters mean. When I print them those are this:

ب�ست � س�� != ب�ست � س��

It seems there is a unicode issue with python2 which I know nothing about them. You did not have the same problem before? For example, for Arabic? Any idea?

By the way, python2 is dead more than one year. Do you still need to check it in the CI?

[erozqba]

I had seen it. But I don't know what those cryptic characters mean. When I print them those are this:

ب�ست � س�� != ب�ست � س��

It seems there is a unicode issue with python2 which I know nothing about them. You did not have the same problem before? For example, for Arabic? Any idea?

By the way, python2 is dead more than one year. Do you still need to check it in the CI?

We should probably remove it any time soon, but sadly python 2.7 still continue to be used a lot.

[HKalbasi]

We should probably remove it any time soon

Do I have to do anything else or just wait?

but sadly python 2.7 still continue to be used a lot.

Yes, but they do not need the latest version of this library.