feat: add directory packages props file

changes:
- added `Directory.Packages.props`
- modified project files

closes #81

Author: BoBoBaSs84

BB84.Notifications.sln

@@ -17,6 +17,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		.gitignore = .gitignore
 		Directory.Build.props = Directory.Build.props
 		Directory.Build.targets = Directory.Build.targets
+		Directory.Packages.props = Directory.Packages.props
 		dotnet-releaser.toml = dotnet-releaser.toml
 		global.json = global.json
 		LICENSE = LICENSE

Directory.Packages.props

@@ -0,0 +1,12 @@
+<Project>
+  <PropertyGroup>
+    <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageVersion Include="MSTest.TestAdapter" Version="3.1.1" />
+    <PackageVersion Include="MSTest.TestFramework" Version="3.2.2" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageVersion Include="System.ComponentModel.Annotations" Version="5.0.0" />
+    <PackageVersion Include="coverlet.collector" Version="6.0.2" />
+  </ItemGroup>
+</Project>

src/BB84.Notifications/BB84.Notifications.csproj

@@ -1,5 +1,5 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <ItemGroup>
-    <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
+    <PackageReference Include="System.ComponentModel.Annotations" />
   </ItemGroup>
 </Project>

tests/BB84.NotificationsTests/BB84.NotificationsTests.csproj

@@ -1,10 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.1.1" />
-    <PackageReference Include="MSTest.TestFramework" Version="3.2.2" />
-    <PackageReference Include="coverlet.collector" Version="6.0.2">
+    <PackageReference Include="Microsoft.NET.Test.Sdk" />
+    <PackageReference Include="MSTest.TestAdapter" />
+    <PackageReference Include="MSTest.TestFramework" />
+    <PackageReference Include="coverlet.collector">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>