Initialize breakpoints when asking for them
Initialize breakpoints when asking for them

This way we don't need Byebug.start before we can start handling
breakpoints.

yui-knk/byebug,saisai/byebug,scalp42/byebug,webdev1001/byebug,yui-knk/byebug,os97673/byebug,ozydingo/byebug,guilherme/byebug,ozydingo/byebug,deivid-rodriguez/byebug,guilherme/byebug,yui-knk/byebug,icebreaker/byebug,miamiruby/byebug,scalp42/byebug,k0kubun/byebug,k0kubun/byebug,icebreaker/byebug,os97673/byebug,k0kubun/byebug,deivid-rodriguez/byebug,saisai/byebug,webdev1001/byebug,guilherme/byebug,miamiruby/byebug,deivid-rodriguez/byebug