added a new function - letter_direction. right now it detects only hebrew rtl.
well now it support Arabic, Arabic Supplement too, but we will leave the language detection for another day.
Merge branch 'letters_direction'
stuff that happend:
- (remove) feel stupid to surfix files with Spec in the spec folder..
- added is_creditcard() test and validation function should be written
- added credit card validation by John Gardner which the is_creditcard
  function will be based on
ok so - is_creditcard got split:
  * main - all the logic
  * erros - handle error messages and status
  * creditcards - list of all supported cards
alright a bit of creditcard code and:
- rebase fixes
- fix split_map. return false attributre for none value
- creditcard not checking a bit the type
- added another error msg to creditcard - [6] = "No card type"
- creditcards.js now have sizes of cards and list of cards.
this is an a bit broken state but still i want to comnit it ->
- added more tests for the credit card
- readme added to todo - letters_direction with is important!
- made a bit of folder restruction
- and now i have a details function which is unfinish and and working but connected to the system