Major updates to doors, dynamic doors, and decorator support

What's Changed

• Anticipate empty parameters being filled by doors or other processes by @teald in #11
• Comprehensive examples written as notebooks and raw python files by @teald in #12
• Add informative neighborhood str method for porchlightneighborhoodneighborhood by @teald in #13
• Add tests for neighborhoodorder doors by @teald in #14
• Add dynamic door generation to neighborhood by @teald in #22
• Filling out docs and added DynamicDoor.call_without_update by @teald in #24
• Fixing bug with decorators; now use closure to get wrapped function by @teald in #26

Full Changelog: v0.1.2...v0.2.0