[SSO] New user provision flow (#945)

* Initial commit of accept user during set password flow

* changed new org user from accepted to invited // moved another check to token accept function

* Revised some white space // Moved business logic to UserService

* Fixed UserServiceTest

* Removed some white-space

* Removed more white-space

* Final white-space issues

bitwarden_license/src/Sso/Controllers/AccountController.cs

@@ -465,7 +465,7 @@ namespace Bit.Sso.Controllers
                         OrganizationId = orgId.Value,
                         UserId = user.Id,
                         Type = OrganizationUserType.User,
-                        Status = OrganizationUserStatusType.Accepted
+                        Status = OrganizationUserStatusType.Invited
                     };
                     await _organizationUserRepository.CreateAsync(orgUser);
                 }