Switch to exile.h

.gitmodules

@@ -1,3 +1,3 @@
-[submodule "submodules/qssb.h"]
-	path = submodules/qssb.h
-	url = https://gitea.quitesimple.org/crtxcr/qssb.h
+[submodule "submodules/exile.h"]
+	path = submodules/exile.h
+	url = https://gitea.quitesimple.org/crtxcr/exile.h