Simplify generation of pre-release versions

Author: glopesdev

Bonsai.Scripting.IronPython.Design/Bonsai.Scripting.IronPython.Design.csproj

@@ -6,7 +6,7 @@
     <PackageTags>Bonsai Rx Scripting Iron Python Design</PackageTags>
     <UseWindowsForms>true</UseWindowsForms>
     <TargetFramework>net462</TargetFramework>
-    <Version>2.7.0</Version>
+    <VersionPrefix>2.7.0</VersionPrefix>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="jacobslusser.ScintillaNET" Version="3.6.3" />

Bonsai.Scripting.IronPython/Bonsai.Scripting.IronPython.csproj

@@ -5,7 +5,7 @@
     <Description>Bonsai Scripting Library containing IronPython scripting infrastructure for Bonsai.</Description>
     <PackageTags>Bonsai Rx Scripting Iron Python</PackageTags>
     <TargetFramework>net462</TargetFramework>
-    <Version>2.7.0</Version>
+    <VersionPrefix>2.7.0</VersionPrefix>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="IronPython" Version="2.7.5" />

Bonsai.Scripting/Bonsai.Scripting.csproj

@@ -6,7 +6,7 @@
     <PackageTags>Bonsai Rx Scripting</PackageTags>
     <UseWindowsForms>true</UseWindowsForms>
     <TargetFramework>net462</TargetFramework>
-    <Version>2.7.0</Version>
+    <VersionPrefix>2.7.0</VersionPrefix>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Bonsai.System\Bonsai.System.csproj" />