* Add array support for input/output arguments
* Add alias support for nullable types
* Refactor workflow definition store API
* Fix array and ui hint setting of input/output definition
* Refactor workflow instance store API
* Add XML comments
* Refactor trigger and bookmark store API
* 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
* Delete DefaultWorkflowInvoker.cs
* Incremental work
* Refactor runtime
* Implement workflow state store + bookmark store
* Cleanup
* Update migrations
* Move store abstractions to management and runtime projects
* Consolidate persistence providers into single package
* Generate migrations
* Regenerate migrations
* Fix DI of memory stores
* Update migrations
* Refactor definition reference due to unserializable record
* Update web server bundle to use EF core by default
* Update Bookmark.cs
Fixes System Text Json deserialization
* 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
