Copy Updated Currencies from setup.php to get_settings.php

[chandachewe10]

Copy Updated Currencies from setup.php to get_settings.php.

[sonarcloud]

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[chandachewe10]

There is duplicated or repetitive code within a software program with respect to constants (countries, currencies and locales).
Its occurring in setup.php and get_settings.php. For example there is $countries_array list,
$currencies_array and $locales_array list in setup.php but again these array list are manually typed repeated in
get_settings.php as we have the same constants: $countries_array list,
$currencies_array and $locales_array list.

This is becoming hard to mantain cause when you change a currency for example in setup.php you have to change all files (again in get_settings.php)
which is a little bit of work since there are some files using the currencies located in get_settings.php. Hence
for efficiency, readability, and maintainability I think these files can have a separate directory where they can be imported.

[johnnyq]

@chandachewe10 Thank you for the pull request and I agree with you, maybe a file called inc_currencies.php one called inc_locales.php