Integrate peerprint v0.2.0

[smartin015]

Companion PR to smartin015/peerprint#12 - this is the next step towards fully decentralized printing.

• Moved as much network code as possible into a separate OctoPrint-PeerPrint repository, including
  • Address discovery, configuration, and binding
  • Network name setting
  • Queue creation (in PeerPrint page itself)
  • Fileshare creation and maintenance/cleanup
  • Dependency on peerprint pypi package
• Additional small tweak to add CSRF protection to blueprint
• queues.lan renamed to queues.net, and LANQueue to NetworkQueue as it's a generic interface for LAN and WAN queues
• Optional enable/disable of queues in spinoff plugin
• Pushes set path resolve() method to all queue implementations, not just LAN
• storage.lan -> storage.peer, LANResolveError -> ResolveError
• Convert all .css files to .less and compile them (compiled files significanly increase diffs in this PR)
• Modifications to JS to show new status info (e.g. lat/lon of peer)
• Split JS files into several independent files for each tab
• Split jinja2 files into several distinct files for different tabs in settings, different layers in CPQ tab
• JobView from_dict -> load_dict
• Added storage/rank.py stern-brocot ranking algorithm
• Updated LAN queue docs to be about network queues