Implement system `bgnpcgn-urd-arab-latn-2007` (BGN/PCGN Romanization System -- Urdu (2007)

[ronaldtse]

This issue is to implement the transliteration system of bgnpcgn-urd-arab-latn-2007.

This system is referred in the GeoNames database as urd_Arab2Latn_BGN_2007, with the system title 'BGN/PCGN Romanization System -- Urdu (2007)'.

Specification: https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/693788/ROMANIZATION_OF_URDU.pdf

Tests should rely on the data extracted for the urd_Arab2Latn_BGN_2007 system in https://github.com/riboseinc/geonames-transliteration-data .

[AhMohsen46]

@ronaldtse am working on this now, there are two systems in each column, should I implement a map for each?
like in https://github.com/interscript/interscript/pull/441
will kick this off implementing bgnpcgn

[AhMohsen46]

Done in PR https://github.com/interscript/interscript/pull/573
expect for https://github.com/interscript/interscript/issues/572