move Copyright to props

Author: SimonCropp

Directory.Build.props

@@ -10,6 +10,7 @@
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <PackageIconUrl>http://go.microsoft.com/fwlink/?LinkID=288890</PackageIconUrl>
     <PackageProjectUrl>https://github.com/Microsoft/OpenAPI.NET</PackageProjectUrl>
+    <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
   </PropertyGroup>
   <!-- https://github.com/clairernovotny/DeterministicBuilds#deterministic-builds -->
   <PropertyGroup Condition="'$(TF_BUILD)' == 'true'">

src/Microsoft.OpenApi.Hidi/Microsoft.OpenApi.Hidi.csproj

@@ -11,7 +11,6 @@
     <PackageOutputPath>./../../artifacts</PackageOutputPath>
     <Version>1.3.0</Version>
     <Description>OpenAPI.NET CLI tool for slicing OpenAPI documents</Description>
-    <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
     <PackageTags>OpenAPI .NET</PackageTags>
     <SignAssembly>true</SignAssembly>
     <!-- https://github.com/dotnet/sourcelink/blob/main/docs/README.md#embeduntrackedsources -->

src/Microsoft.OpenApi.Readers/Microsoft.OpenApi.Readers.csproj

@@ -5,7 +5,6 @@
         <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
         <Version>1.6.9</Version>
         <Description>OpenAPI.NET Readers for JSON and YAML documents</Description>
-        <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
         <PackageTags>OpenAPI .NET</PackageTags>
         <SignAssembly>true</SignAssembly>
         <!-- https://github.com/dotnet/sourcelink/blob/main/docs/README.md#embeduntrackedsources -->

src/Microsoft.OpenApi/Microsoft.OpenApi.csproj

@@ -5,7 +5,6 @@
         <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
         <Version>1.6.9</Version>
         <Description>.NET models with JSON and YAML writers for OpenAPI specification</Description>
-        <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
         <PackageTags>OpenAPI .NET</PackageTags>
         <SignAssembly>true</SignAssembly>
         <!-- https://github.com/dotnet/sourcelink/blob/main/docs/README.md#embeduntrackedsources -->