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/Include/patchlevel.h

@@ -0,0 +1,43 @@
+
+/* Newfangled version identification scheme.
+
+   This scheme was added in Python 1.5.2b2; before that time, only PATCHLEVEL
+   was available.  To test for presence of the scheme, test for
+   defined(PY_MAJOR_VERSION).
+
+   When the major or minor version changes, the VERSION variable in
+   configure.ac must also be changed.
+
+   There is also (independent) API version information in modsupport.h.
+*/
+
+/* Values for PY_RELEASE_LEVEL */
+#define PY_RELEASE_LEVEL_ALPHA	0xA
+#define PY_RELEASE_LEVEL_BETA	0xB
+#define PY_RELEASE_LEVEL_GAMMA	0xC     /* For release candidates */
+#define PY_RELEASE_LEVEL_FINAL	0xF	/* Serial should be 0 here */
+					/* Higher for patch releases */
+
+/* Version parsed out into numeric values */
+/*--start constants--*/
+#define PY_MAJOR_VERSION	2
+#define PY_MINOR_VERSION	7
+#define PY_MICRO_VERSION	18
+#define PY_RELEASE_LEVEL	PY_RELEASE_LEVEL_FINAL
+#define PY_RELEASE_SERIAL	0
+
+/* Version as a string */
+#define PY_VERSION      	"2.7.18"
+/*--end constants--*/
+
+/* Subversion Revision number of this file (not of the repository). Empty
+   since Mercurial migration. */
+#define PY_PATCHLEVEL_REVISION  ""
+
+/* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.
+   Use this for numeric comparisons, e.g. #if PY_VERSION_HEX >= ... */
+#define PY_VERSION_HEX ((PY_MAJOR_VERSION << 24) | \
+			(PY_MINOR_VERSION << 16) | \
+			(PY_MICRO_VERSION <<  8) | \
+			(PY_RELEASE_LEVEL <<  4) | \
+			(PY_RELEASE_SERIAL << 0))