python3-toolz: new package

Add a recipe for toolz: a set of utility functions for iterators,
functions, and dictionaries.

Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-core/packagegroups/packagegroup-meta-python.bb

@@ -405,6 +405,7 @@ RDEPENDS:packagegroup-meta-python3 = "\
     python3-thrift \
     python3-tinyrecord \
     python3-tornado \
+    python3-toolz \
     python3-tqdm \
     python3-trafaret \
     python3-trafaret-config \