[Java.Interop{,Export}] Set Version to 0.1.0.0

Context: https://discord.com/channels/732297728826277939/732297837953679412/898675755779768330

Author: jonpryor

build-tools/scripts/Version.props.in

@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-    <Version>@VERSION@</Version>
+    <Version Condition=" '$(Version)' == '' ">@VERSION@</Version>
     <InformationalVersion>@VERSION@ git-rev-head:@COMMIT@ git-branch:@BRANCH@</InformationalVersion>
     <Company>Microsoft Corporation</Company>
     <Copyright>Microsoft Corporation</Copyright>

src/Java.Interop.Export/Java.Interop.Export.csproj

@@ -7,6 +7,7 @@
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>..\..\product.snk</AssemblyOriginatorKeyFile>
     <AssemblyTitle>Java.Interop.Export</AssemblyTitle>
+    <Version>0.1.0.0</Version>
   </PropertyGroup>
   <PropertyGroup>
     <OutputPath>$(ToolOutputFullPath)</OutputPath>

src/Java.Interop/Java.Interop-MonoAndroid.csproj

@@ -17,6 +17,7 @@
     <LangVersion>8.0</LangVersion>
     <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
     <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
+    <Version>0.1.0.0</Version>
   </PropertyGroup>
   <Import Project="..\..\Directory.Build.props" />
   <PropertyGroup>

src/Java.Interop/Java.Interop.csproj

@@ -30,6 +30,7 @@
     <Nullable>enable</Nullable>
     <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
     <MSBuildWarningsAsMessages>NU1702</MSBuildWarningsAsMessages>
+    <Version>0.1.0.0</Version>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DefineConstants>DEBUG;$(DefineConstants)</DefineConstants>