* Various additions and tweaks
* Fix WriteHttpResponse when no content type provided
* Bump designer version
* Return when sending response
* Remove faulty validation
* Incremental work on samples
* Rename HTTP middleware and update samples
* Rename HTTP Activities to Workflows
* Automatically register core activities when adding Elsa
* Fix feature registration bug
* Add default auth feature
* Make activity serializer more flexible
* Bump designer version
* Add workflow server + designer samples
* Simplify EntityFrameworkCore projects
* Update solution
* Add Sqlite package references to ensure the correct version is used
* Update sample project with EF Core
* Update EF extensions
* Add server + designer sample project
* Cleanup AllInOne project and add some XML comments
* Rename ci.yml and add CI for Docker file
* Incremental work on Telnyx integration
* Incremental port of Telnyx activities
* Fix polymorphic JSON serialization for webhook data
* Fix IsFirstPass logic
* Fix trigger base to prevent activity auto completion
* Temporarily disable persistent snapshotting provider for testing
* Fix namespaces
* Add method to register activities in bulk using marker type
* Fix Telnyx refit client setup
* Register all Telnyx activities by default
* Incremental work on webhook driven resumption and correlation
* Incremental work on post-bookmark signaling
* Fix bookmark resolution
* Include correlation ID with bookmark
* Fix Telnyx resumption input
* Replace bookmark persisted signal with handler
* Fix SpeakText completion
* Add flow outcomes to SpeakText activity
* Update GatherUsingSpeak and GatherUsingaudio
* Refactor "is first pass" concept
* Fix WebhookEvent activity
* Add HTTP absolute URL provider
* Formatting and small changes
* Various API enhancements
* Incremental work on custom activities
* Incremental work on refactoring versioned entities
* Add ActivityDefinition infrastructure
* Incremental work on activity definition manager
* Incremental work on API endpoints
* Refactored flowchart component to include hierarchical nav
* Incremental work on modularization of designer component
* Restructuring into modules
* Rename CustomActivities module
* Apply security
* Fix activity definition GET endpoint
* Incremental work on activity definition provider
* Incremental work on activity definition execution
* Update ActivityDefinitionMaterializer.cs
* Update ActivityDefinitionActivityProvider.cs
* Add activity definition referenced version update handler
* Maintain position of not found activity
* Fix prefix naming