chore(Common): Update common version

Author: mediumTaj

src/IBM.Watson.Common/Common.cs

@@ -27,7 +27,7 @@ public partial class Common
         /// <summary>
         /// The SDK version.
         /// </summary>
-        public const string Version = "watson-apis-dotnet-standard-sdk-4.0.0-rc1";
+        public const string Version = "watson-apis-dotnet-standard-sdk-4.0.0";
         private static string os;
         private static string osVersion;
         private static string frameworkDescription;

src/IBM.Watson.Common/IBM.Watson.Common.csproj

@@ -3,15 +3,14 @@
     <PropertyGroup>
         <Description>IBM.Watson.Common is a library of functionality needed for SDKs generated using the IBM OpenApi SDK generator. The library has functionality specific for the generated SDK.</Description>
         <AssemblyTitle>IBM.Watson.Common</AssemblyTitle>
-        <VersionPrefix>4.0.0-rc1</VersionPrefix>
         <Authors>IBM Watson</Authors>
         <TargetFramework>netstandard2.0</TargetFramework>
         <AssemblyName>IBM.Watson.Common</AssemblyName>
         <PackageId>IBM.Watson.Common</PackageId>
         <PackageTags>watson;cognitive;speech;vision;machine-learning;ml;ai;artificial-intelligence;.NET;.NET-Standard</PackageTags>
         <PackageIconUrl>https://watson-developer-cloud.github.io/dotnet-standard-sdk/img/Watson_Avatar_Pos_RGB.png</PackageIconUrl>
         <PackageProjectUrl>https://github.com/watson-developer-cloud/dotnet-standard-sdk</PackageProjectUrl>
-        <Version>4.0.0-rc1</Version>
+        <Version>4.0.0</Version>
     </PropertyGroup>
 
     <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">