prefixed ordinal keys

[adrai]

instead of:

// i.e. english
{
  "key_one": "{{count}}st place", // 1st, 21st, 31st
  "key_two": "{{count}}nd place", // 2nd, 22nd, 32nd
  "key_few": "{{count}}rd place", // 3rd, 23rd, 33rd
  "key_other": "{{count}}th place" // 4th, 5th, 24th, 11th
}
// ...
i18next.t('key', { count: 1, ordinal: true }); // -> "1st place"
i18next.t('key', { count: 21, ordinal: true }); // -> "21st place"
i18next.t('key', { count: 2, ordinal: true }); // -> "2nd place"
i18next.t('key', { count: 11, ordinal: true }); // -> "11th place"
i18next.t('key', { count: 32, ordinal: true }); // -> "32nd place"

new:

// i.e. english
{
  "key_ordinal_one": "{{count}}st place", // 1st, 21st, 31st
  "key_ordinal_two": "{{count}}nd place", // 2nd, 22nd, 32nd
  "key_ordinal_few": "{{count}}rd place", // 3rd, 23rd, 33rd
  "key_ordinal_other": "{{count}}th place" // 4th, 5th, 24th, 11th
}
// ...
i18next.t('key', { count: 1, ordinal: true }); // -> "1st place"
i18next.t('key', { count: 21, ordinal: true }); // -> "21st place"
i18next.t('key', { count: 2, ordinal: true }); // -> "2nd place"
i18next.t('key', { count: 11, ordinal: true }); // -> "11th place"
i18next.t('key', { count: 32, ordinal: true }); // -> "32nd place"

but there's also a fallback to the keys without _ordinal prefix

TODO: update the docs: https://www.i18next.com/translation-function/plurals#ordinal-plurals

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[coveralls]

coverage: 92.112% (-0.03%) from 92.14% when pulling ada2013 on prefixed_ordinal into 3c5308e on master.