Forgot to set plugin references to private

Author: muratcakir

src/Libraries/SmartStore.Services/Helpers/DateTimeHelper.cs

@@ -18,7 +18,8 @@ public partial class DateTimeHelper : IDateTimeHelper
 
 		private TimeZoneInfo _cachedUserTimeZone;
 
-        public DateTimeHelper(IWorkContext workContext,
+        public DateTimeHelper(
+			IWorkContext workContext,
 			IGenericAttributeService genericAttributeService,
             ISettingService settingService, 
             DateTimeSettings dateTimeSettings)

src/Plugins/SmartStore.GoogleMerchantCenter/SmartStore.GoogleMerchantCenter.csproj

@@ -101,7 +101,6 @@
     </Reference>
     <Reference Include="FluentValidation, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7de548da2fbae0f0, processorArchitecture=MSIL">
       <HintPath>..\..\packages\FluentValidation.7.4.0\lib\net45\FluentValidation.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.Web.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Microsoft.Web.Infrastructure.1.0.0.0\lib\net40\Microsoft.Web.Infrastructure.dll</HintPath>

src/Plugins/SmartStore.OfflinePayment/SmartStore.OfflinePayment.csproj

@@ -88,7 +88,6 @@
     </Reference>
     <Reference Include="FluentValidation, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7de548da2fbae0f0, processorArchitecture=MSIL">
       <HintPath>..\..\packages\FluentValidation.7.4.0\lib\net45\FluentValidation.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.Web.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Microsoft.Web.Infrastructure.1.0.0.0\lib\net40\Microsoft.Web.Infrastructure.dll</HintPath>

src/Plugins/SmartStore.PayPal/SmartStore.PayPal.csproj

@@ -68,7 +68,6 @@
     </Reference>
     <Reference Include="FluentValidation, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7de548da2fbae0f0, processorArchitecture=MSIL">
       <HintPath>..\..\packages\FluentValidation.7.4.0\lib\net45\FluentValidation.dll</HintPath>
-      <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.Web.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Microsoft.Web.Infrastructure.1.0.0.0\lib\net40\Microsoft.Web.Infrastructure.dll</HintPath>