SecretSharingDotNet.csproj: Bump version to [v0.8.0]

... and update release notes.

Resolves: No entry

src/SecretSharingDotNet.csproj

@@ -10,14 +10,14 @@
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <PackageId>SecretSharingDotNet</PackageId>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
-    <PackageReleaseNotes>Fixed reopened bug #60 "Reconstruction fails at random". Added implicit casts for byte arrays in Secret class. Added legacy mode. Changed calculation of maximum security level in Reconstruction method. Remove support for .NET FX 4.5.2, 4.6 and 4.6.2.</PackageReleaseNotes>
+    <PackageReleaseNotes>Removed .NET 5 support. Added localization for exception messages in English and German. Add new overloads for the MakeShares method. Mark some ctors, properties and methods as deprecated.</PackageReleaseNotes>
     <PackageDescription>An C# implementation of Shamir's Secret Sharing</PackageDescription>
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <PackageTags>secret sharing;shamir secret sharing;cryptography</PackageTags>
     <PackageProjectUrl>https://github.com/shinji-san/SecretSharingDotNet</PackageProjectUrl>
     <RepositoryUrl>https://github.com/shinji-san/SecretSharingDotNet</RepositoryUrl>
     <RepositoryType>git</RepositoryType>
-    <Version>0.7.0</Version>
+    <Version>0.8.0</Version>
     <Authors>Sebastian Walther</Authors>
     <Company>Private Person</Company>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>