Initial QSfera import

Server/vendor/github.com/ebitengine/purego/internal/fakecgo/fakecgo.go

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: 2025 The Ebitengine Authors
+
+//go:build !cgo && (darwin || freebsd || linux || netbsd)
+
+package fakecgo
+
+import _ "unsafe"
+
+// setg_trampoline calls setg with the G provided
+func setg_trampoline(setg uintptr, G uintptr)
+
+// call5 takes fn the C function and 5 arguments and calls the function with those arguments
+func call5(fn, a1, a2, a3, a4, a5 uintptr) uintptr