* Add Collections Tests
* Update CollectionRepository Implementation
* Test Adding And Deleting Through Replace
* Format
* Fix Most Test Warnings
* Format
* Renamed ProductType to ProductTierType
* Renamed Product properties to ProductTier
* Moved ProductTierType to Bit.Core.Billing.Enums namespace from Bit.Core.Enums
* Moved PlanType enum to Bit.Core.Billing.Enums
* Moved StaticStore to Bit.Core.Billing.Models.StaticStore namespace
* Added ProductType enum
* dotnet format
* Fix assigning Manage access to default collection
The previous implementation did not work when creating an org as a
provider because the ownerId is null in OrganizationService.SignUp.
Added a null check and handled assigning access in ProviderService
instead.
* Tweaks
