windows: Fix Compilation with Microsoft Visual Studio 2026

Closes libusb#1702

Author: Xphalnos

libusb/version_nano.h

@@ -1 +1 @@
-#define LIBUSB_NANO 11986
+#define LIBUSB_NANO 11987

msvc/Configuration.Base.props

@@ -7,6 +7,7 @@
     <PlatformToolset Condition="$(VisualStudioVersion)=='15.0'">v141</PlatformToolset>
     <PlatformToolset Condition="$(VisualStudioVersion)=='16.0'">v142</PlatformToolset>
     <PlatformToolset Condition="$(VisualStudioVersion)=='17.0'">v143</PlatformToolset>
+    <PlatformToolset Condition="$(VisualStudioVersion)=='18.0'">v145</PlatformToolset>
     <!--We may need the equivalent of PlatformToolsetVersion before it's ready, so create it ourself-->
     <LibusbPlatformToolsetVersion>$(PlatformToolset.Substring(1))</LibusbPlatformToolsetVersion>
     <CharacterSet>Unicode</CharacterSet>
@@ -44,4 +45,4 @@
   <PropertyGroup Label="Globals" Condition="'$(LibusbPlatformToolsetVersion)'&gt;='142'">
     <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
-</Project>
+</Project>