python: import ruamel-yaml from meta-python

Importing ruamel-yaml from meta-python. This package is a
dependency of python3-dtschema, which is required to validate
kernel devicetrees.

(From OE-Core rev: 748f7d377b62a0cd6bae558791a4d84b8110ea1a)

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python3-ruamel-yaml_0.17.16.bb

@@ -0,0 +1,23 @@
+SUMMARY = "YAML parser/emitter that supports roundtrip preservation of comments, seq/map flow style, and map key order."
+AUTHOR = "Anthon van der Neut"
+
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=fa0a51dfb461e2f803969e0f3fa71dfe"
+
+PYPI_PACKAGE = "ruamel.yaml"
+
+inherit pypi setuptools3
+
+SRC_URI[sha256sum] = "1a771fc92d3823682b7f0893ad56cb5a5c87c48e62b5399d6f42c8759a583b33"
+
+RDEPENDS:${PN} += "\
+    ${PYTHON_PN}-shell \
+    ${PYTHON_PN}-datetime \
+    ${PYTHON_PN}-netclient \
+"
+
+do_install:prepend() {
+    export RUAMEL_NO_PIP_INSTALL_CHECK=1
+}
+
+BBCLASSEXTEND = "native nativesdk"