* Remove Organization.FlexibleCollections from code
* Drop Organization.FlexibleCollections column in EF databases
(MSSQL column to be retained for 1 additional deployment to support rollback in cloud)
* 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
* [AC-1637] Added HtmlEncodingStringConverter to encode/decode special chars on JSON serialization/deserialization
* [AC-1637] Added unit tests for HtmlEncodingStringConverter
* [AC-1637] Moved expected values on unit tests to the arrange phase
* [AC-1637] Added HtmlEncodingStringConverter to properties that are for input/output of Org Name and Business name
* [AC-1637] Modified views in Admin project to decode values to display
* [AC-1637] Replaced Html.Raw with HttpUtility.HtmlDecode
* [AC-1637] Added JsonConverter to Provider DTOs
* [AC-1637] Modified HandlebarsMailService to decode organization name before sending emails
* Revert "[AC-1637] Added JsonConverter to Provider DTOs"
This reverts commit 94d507cf93.
* [AC-1637] Fixed Admin panel organization search
* [AC-1637] Sanitizing Organization name and business name on creation in Admin panel
* [AC-1637] Sanitizing organization name and business name on creation by a provider
* [AC-1637] Sanitizing provider name on creation and on viewing in admin panel
* [AC-1637] Added sanitization to more places where Org name is used
* [AC-1637] Swapped using HttpUtility for WebUtility since the later is part of the dotnet framework
* [AC-1637] Updated error messages
* [AC-1637] Decoding on Admin panel add existing organization
* [AC-1637] Fix HTML decoding issues
* [AC-1637] Refactor HTML decoding in View and Model classes on Admin panel
* [AC-1637] Refactor provider name and business name usages to use methods that output decoded values
* [AC-1637] Fixed typo
* [AC-1637] Renamed Provider methods to retrieve Decoded Name and BusinessName
* [AC-1637] Renamed Organization methods to retrieve Decoded Name and BusinessName
* [AC-1637] Update the display name method in the `ProviderOrganizationOrganizationDetails` class to `DisplayName()`
