Add Windows build with clang

namecollision/build.ps1

@@ -0,0 +1,15 @@
+param(
+    [string]$Opt = "-O0"
+)
+
+$ErrorActionPreference = "Stop"
+
+# Compile hello.cpp as a shared library (also generates libhello.lib import library)
+clang++ -std=c++17 $Opt -shared -o libhello.dll hello.cpp "-Wl,/IMPLIB:libhello.lib"
+if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+
+# Compile and link main.cpp with the shared library
+clang++ -std=c++17 $Opt -o main.exe main.cpp libhello.lib
+if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+
+Write-Host "Build successful"