python3-manifest: add statistics subpackage

cpython/Lib/statistics.py contains common statistics functions

"""
Basic statistics module.
This module provides functions for calculating statistics of data, including
averages, variance, and standard deviation.
"""

(From OE-Core rev: cf1c49fea90e11bc037025e15e44f705a12385bf)

Signed-off-by: Tim Orling <timothy.t.orling@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python3/python3-manifest.json

@@ -814,6 +814,7 @@
             "shell",
             "smtpd",
             "sqlite3",
+	    "statistics",
             "stringold",
             "syslog",
             "terminal",
@@ -1085,6 +1086,20 @@
         ],
         "cached": []
     },
+    "statistics": {
+	"summary": "Basic statistics module",
+	"rdepends": [
+	    "core",
+	    "math",
+	    "numbers"
+	],
+	"files": [
+	    "${libdir}/python${PYTHON_MAJMIN}/statistics.py"
+	],
+	"cached": [
+	    "${libdir}/python${PYTHON_MAJMIN}/__pycache__/statistics.*.pyc"
+	]
+    },
     "stringold": {
         "summary": "Python string APIs [deprecated]",
         "rdepends": [