refactored to allow multi file sitemaps

[luceos]

• sijad pages moved to fof/pages
• refactored all resource definitions into their own classes, whether they should be used could also be moved into these resource definition classes possibly
• bound these resources into ioc
• resolved these resources for SitemapGenerator and MultiPageSitemapCommand; giving lots of flexibility
• MultiPageSitemapCommand will write multiple sitemap files per Model, it will chunk to prevent reaching the max. It also stores to the storage directory temporarily, then moves to public on completion and writing index. It also gzips ;)

Did I miss anything? Sorry that this pretty much rewrites all of it.

[luceos]

@clarkwinkelmann please review