Overhaul build system; Update core and plugins

Most significant changes listed below

* Remove files generated by autotools
* Add bootstrap script
* Allow users to build motoko without warden support
* Add compatibility layer
* Add INTERNAL_REQUEST interface
* Add Include directive for plugin configuration
* Add CD key rotation capability to plugin mcp game
* Improve plugin chicken reliability
* Add socket detection to plugin pickit (broken)
* Fix several minor bugs
* Update configuration file templates