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/Lib/hotshot/stones.py

@@ -0,0 +1,30 @@
+import errno
+import hotshot
+import hotshot.stats
+import sys
+import test.pystone
+
+def main(logfile):
+    p = hotshot.Profile(logfile)
+    benchtime, stones = p.runcall(test.pystone.pystones)
+    p.close()
+
+    print "Pystone(%s) time for %d passes = %g" % \
+          (test.pystone.__version__, test.pystone.LOOPS, benchtime)
+    print "This machine benchmarks at %g pystones/second" % stones
+
+    stats = hotshot.stats.load(logfile)
+    stats.strip_dirs()
+    stats.sort_stats('time', 'calls')
+    try:
+        stats.print_stats(20)
+    except IOError, e:
+        if e.errno != errno.EPIPE:
+            raise
+
+if __name__ == '__main__':
+    if sys.argv[1:]:
+        main(sys.argv[1])
+    else:
+        import tempfile
+        main(tempfile.NamedTemporaryFile().name)