AutorunEngine: Cleanup, rename REST routes, use Core::Models in REST API

[bcoles]

Replace BeEF::Core::AutorunEngine::Models with BeEF::Core::Models. Fixes #2019. Shoutout to @Squigilum for fixing this in #2020 which was unfortunately never merged.

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Rename the REST API URL routes to be more sensible. Request all rules with /api/autorun/rules. No more of this /api/autorun/rule/list/all nonsense.

get '/rules'
get '/rule/:rule_id'
get '/run/:rule_id'
get '/run/:rule_id/:hb_id'
post '/rule/add'
delete '/rule/:rule_id'

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Add REST API samples for the Autorun REST API.

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Massive refactor of the Autorun Engine. It is still terrible but now the code is readable.

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Remove os / browser properties with redundant 'ALL' values from sample ARE rules. ALL is implied and does not need to be defined.