Test smart-float and money directives to correctness

[asvishnyakov]

Currently used smart-float and money directives may have incorrect behavior. For example, smart-float allow you to use numbers in the following formats:

• 222,111.000
• 222.111,000
• 222,111
• 222.111

First two numbers will be converted to 222111 (two hundred twenty-two thousand, one hundred eleven), while second two will be converted to 222 + 111/1000 (two hundred twenty-two and one hundred eleven thousandths).

But third example is incorrect in en-US locale (correctly it must be 222111 (two hundred twenty-two thousand, one hundred eleven) because comma is group separator here).

Write tests to check correctness of numbers parsing by smart-float directive.

Also, we have (commented) another implementation of this directive based on angular i18n. Check it's correctness too and if it correct, use instead of current implementation.