add script to identify missing extensions for a new wiki import (#932)
add script to identify missing extensions for a new wiki import (#932)

* initial script for helping identify missing extensions for a new wiki import

* fix count of extensions by trimming last newline

freephile/qb,enterprisemediawiki/Meza1,freephile/meza,freephile/meza,enterprisemediawiki/meza,freephile/qb,freephile/meza,enterprisemediawiki/Meza1,enterprisemediawiki/Meza1,enterprisemediawiki/meza,freephile/meza,enterprisemediawiki/meza,enterprisemediawiki/meza,freephile/qb