chore: import upstream snapshot with attribution

tests/fixtures/sample_import.ps1

@@ -0,0 +1,10 @@
+Import-Module Foo
+Import-Module -Name Bar.psm1
+. ./Shared.psm1
+. .\Utils.ps1
+
+function Invoke-Main {
+    Import-Module InnerMod
+    . ./InnerShared.psm1
+    Get-Data
+}