Allow private per-package confs
Allow private per-package confs

Just prefix them with a _.  Transparent to the receiving module.

cchamberlain/npm-msys2,segrey/npm,evocateur/npm,haggholm/npm,segmentio/npm,segrey/npm,chadnickbok/npm,chadnickbok/npm,segment-boneyard/npm,kimshinelove/naver-npm,xalopp/npm,rsp/npm,princeofdarkness76/npm,kimshinelove/naver-npm,rsp/npm,thomblake/npm,Volune/npm,kemitchell/npm,princeofdarkness76/npm,xalopp/npm,haggholm/npm,Volune/npm,lxe/npm,thomblake/npm,haggholm/npm,chadnickbok/npm,kriskowal/npm,DIREKTSPEED-LTD/npm,kriskowal/npm,cchamberlain/npm-msys2,cchamberlain/npm-msys2,segmentio/npm,ekmartin/npm,lxe/npm,yodeyer/npm,cchamberlain/npm,xalopp/npm,kemitchell/npm,misterbyrne/npm,rsp/npm,kriskowal/npm,DIREKTSPEED-LTD/npm,segment-boneyard/npm,evanlucas/npm,yibn2008/npm,cchamberlain/npm,kimshinelove/naver-npm,segmentio/npm,DaveEmmerson/npm,yodeyer/npm,yyx990803/npm,midniteio/npm,DIREKTSPEED-LTD/npm,yodeyer/npm,thomblake/npm,midniteio/npm,yyx990803/npm,Volune/npm,segrey/npm,evanlucas/npm,DaveEmmerson/npm,midniteio/npm,yibn2008/npm,princeofdarkness76/npm,misterbyrne/npm,DaveEmmerson/npm,evocateur/npm,TimeToogo/npm,segment-boneyard/npm,lxe/npm,cchamberlain/npm,ekmartin/npm,TimeToogo/npm,yyx990803/npm,ekmartin/npm,misterbyrne/npm,yibn2008/npm,evocateur/npm,TimeToogo/npm,evanlucas/npm,kemitchell/npm