layout: restructure into src/ tests/ android/ scripts/ tools/

- extension/src/{port,platform,codepage} -> src/; native_render -> src/host
  (+ dxt, shaders/); libgr2 -> src/gr2; extension/third_party -> third_party
- extension/tests -> tests/port, libgr2/tests -> tests/gr2
- android-native -> android (build.sh, push-client.sh moved in)
- script -> scripts; tools/40250 -> tools/server; oracle -> tools/granny-oracle;
  perf tools -> tools/perf
- all build trees under build/ (native, release, android, port-gate)
- xrender:: CMake aliases -> mt::; port-map ledger impl paths rewritten

No code changes. ctest 15/15, port_gate macos+android PASS, port_map check 0 errors.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

third_party/cpython-2.7.18/Modules/timingmodule.c

@@ -0,0 +1,62 @@
+/*
+ * Author: George V. Neville-Neil
+ */
+
+#include "Python.h"
+
+/* Our stuff... */
+#include "timing.h"
+
+static PyObject *
+start_timing(PyObject *self)
+{
+    Py_INCREF(Py_None);
+    BEGINTIMING;
+    return Py_None;
+}
+
+static PyObject *
+finish_timing(PyObject *self)
+{
+    ENDTIMING
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+
+static PyObject *
+seconds(PyObject *self)
+{
+    return PyInt_FromLong(TIMINGS);
+}
+
+static PyObject *
+milli(PyObject *self)
+{
+    return PyInt_FromLong(TIMINGMS);
+}
+
+static PyObject *
+micro(PyObject *self)
+{
+    return PyInt_FromLong(TIMINGUS);
+}
+
+
+static PyMethodDef timing_methods[] = {
+    {"start",   (PyCFunction)start_timing, METH_NOARGS},
+    {"finish",  (PyCFunction)finish_timing, METH_NOARGS},
+    {"seconds", (PyCFunction)seconds, METH_NOARGS},
+    {"milli",   (PyCFunction)milli, METH_NOARGS},
+    {"micro",   (PyCFunction)micro, METH_NOARGS},
+    {NULL,      NULL}
+};
+
+
+PyMODINIT_FUNC inittiming(void)
+{
+    if (PyErr_WarnPy3k("the timing module has been removed in "
+                        "Python 3.0; use time.clock() instead", 2) < 0)
+        return;
+
+    (void)Py_InitModule("timing", timing_methods);
+}