python3-decorator: upgrade 5.0.9 -> 5.1.0

Added a function `decoratorx` using the `FunctionMaker` and thus
preserving the signature of `__code__` objects. Then fixed three small bugs:
- Sphinx was printing a few warnings when building the documentation, as
  signaled by Tomasz Kłoczko
- functions decorated with `decorator.contextmanager` were one-shot,
  as discovered by Alex Pizarro.
- `decorator.decorator` was not passing the kwsyntax argument.

Signed-off-by: Zang Ruochen <zangrc.fnst@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com>

meta-python/recipes-devtools/python/python3-decorator_5.1.0.bb

@@ -0,0 +1,18 @@
+SUMMARY = "Python decorator utilities"
+DESCRIPTION = "\
+The aim of the decorator module it to simplify the usage of decorators \
+for the average programmer, and to popularize decorators by showing \
+various non-trivial examples. Of course, as all techniques, decorators \
+can be abused and you should not try to solve every problem with a \
+decorator, just because you can."
+
+LICENSE = "BSD-2-Clause"
+LIC_FILES_CHKSUM = "file://LICENSE.txt;md5=be2fd2007972bf96c08af3293d728b22"
+
+SRC_URI[sha256sum] = "e59913af105b9860aa2c8d3272d9de5a56a4e608db9a2f167a8480b323d529a7"
+
+inherit pypi setuptools3
+
+RDEPENDS:${PN} += "\
+    ${PYTHON_PN}-stringold \
+    "