Open-aea

- Moves non-default packages from AEA to packages directory
- Supports get & set on package configurations
- Changes skill configuration resource types from lists to dictionaries
- Adds additional features to decision maker
- Refactors most protocols and improves their API
- Removes multiple unintended side-effects of the CLI
- Improves dependency referencing in configuration files
- Adds push and publish functionality to CLI
- Introduces simple and composite behaviours and applies them in skills
- Adds URI to envelopes
- Adds guide for programmatic assembly of an AEA
- Adds guide on agent-oriented development
- Multiple minor doc updates
- Adds additional tests
- Multiple additional minor fixes and changes

- Removes dependency on OEF SDK's FIPA API
- Replaces dialogue id with dialogue references
- Improves CLI logging and list/search command output
- Introduces multiplexer and removes mailbox
- Adds much improved tac skills
- Adds support for CLI integration with registry
- Increases test coverage to 99%
- Introduces integration tests for skills and examples
- Adds support to run multiple connections from CLI
- Updates the docs and adds UML diagrams
- Multiple additional minor fixes and changes

- Adds envelope serialiser
- Adds support for programmatically initializing an AEA
- Adds some tests for the GUI and other components
- Exposes connection status to skills
- Updates OEF connection to re-establish dropped connections
- Updates the car park agent
- Multiple additional minor fixes and changes

- Adds TCP connection (server and client)
- Fixes some examples and docs
- Refactors crypto modules and adds additional tests
- Multiple additional minor fixes and changes

- Adds Python 3.8 test coverage
- Adds almost complete test coverage on AEA package
- Adds filter concept for message routing
- Adds ledger integrations for Fetch.ai and Ethereum
- Adds car park examples and ledger examples
- Multiple additional minor fixes and changes

- Compatibility fixes for Ubuntu and Windows platforms
- Multiple additional minor fixes and changes