C#: Add shared dependency fetching project.

Author: michaelnebel

csharp/CSharp.sln

@@ -11,6 +11,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Semmle.Extraction.CSharp",
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Semmle.Extraction.CIL", "extractor\Semmle.Extraction.CIL\Semmle.Extraction.CIL.csproj", "{399A1579-68F0-40F4-9A23-F241BA697F9C}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Semmle.Extraction.CSharp.DependencyFetching", "extractor\Semmle.Extraction.CSharp.DependencyFetching\Semmle.Extraction.CSharp.DependencyFetching.csproj", "{541D1AC5-E42C-4AB2-A1A4-C2355CE2A2EF}"
+EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Semmle.Extraction.CSharp.Standalone", "extractor\Semmle.Extraction.CSharp.Standalone\Semmle.Extraction.CSharp.Standalone.csproj", "{D00E7D25-0FA0-48EC-B048-CD60CE1B30D8}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Semmle.Extraction.CIL.Driver", "extractor\Semmle.Extraction.CIL.Driver\Semmle.Extraction.CIL.Driver.csproj", "{EFA400B3-C1CE-446F-A4E2-8B44E61EF47C}"
@@ -49,6 +51,10 @@ Global
 		{399A1579-68F0-40F4-9A23-F241BA697F9C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{399A1579-68F0-40F4-9A23-F241BA697F9C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{399A1579-68F0-40F4-9A23-F241BA697F9C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{541D1AC5-E42C-4AB2-A1A4-C2355CE2A2EF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{541D1AC5-E42C-4AB2-A1A4-C2355CE2A2EF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{541D1AC5-E42C-4AB2-A1A4-C2355CE2A2EF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{541D1AC5-E42C-4AB2-A1A4-C2355CE2A2EF}.Release|Any CPU.Build.0 = Release|Any CPU
 		{D00E7D25-0FA0-48EC-B048-CD60CE1B30D8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{D00E7D25-0FA0-48EC-B048-CD60CE1B30D8}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{D00E7D25-0FA0-48EC-B048-CD60CE1B30D8}.Release|Any CPU.ActiveCfg = Release|Any CPU

csharp/extractor/Semmle.Extraction.CSharp.DependencyFetching/Properties/AssemblyInfo.cs

@@ -0,0 +1,35 @@
+using System.Reflection;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("Semmle.Extraction.CSharp.DependencyFetching")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Semmle.Extraction.CSharp.DependencyFetching")]
+[assembly: AssemblyCopyright("Copyright ©  2023")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("8e902d1e-f639-4f9f-a6d2-71e8ade7c5a3")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

csharp/extractor/Semmle.Extraction.CSharp.DependencyFetching/Semmle.Extraction.CSharp.DependencyFetching.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <AssemblyName>Semmle.Extraction.CSharp.DependencyFetching</AssemblyName>
+    <RootNamespace>Semmle.Extraction.CSharp.DependencyFetching</RootNamespace>
+    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
+    <RuntimeIdentifiers>win-x64;linux-x64;osx-x64</RuntimeIdentifiers>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Folder Include="Properties\" />
+  </ItemGroup>
+
+</Project>