feat(22.04): add python3.11 slices and dependencies

This commit adds the slice definition files for the Python 3.11 package
and it's dependencies. The Python library packages are organized
similarly to that of Python3.8 for focal. [1]

[1] canonical#44.

slices/libmpdec3.yaml

@@ -0,0 +1,11 @@
+package: libmpdec3
+
+slices:
+  libs:
+    essential:
+      - libc6_libs
+      - libgcc-s1_libs
+      - libstdc++6_libs
+    contents:
+      /usr/lib/*-linux-*/libmpdec++.so.*:
+      /usr/lib/*-linux-*/libmpdec.so.*:

slices/libncursesw6.yaml

@@ -0,0 +1,12 @@
+package: libncursesw6
+
+slices:
+  libs:
+    essential:
+      - libc6_libs
+      - libtinfo6_libs
+    contents:
+      /lib/*-linux-*/libncursesw.so.6*:
+      /usr/lib/*-linux-*/libformw.so.6*:
+      /usr/lib/*-linux-*/libmenuw.so.6*:
+      /usr/lib/*-linux-*/libpanelw.so.6*:

slices/libnsl2.yaml

@@ -0,0 +1,9 @@
+package: libnsl2
+
+slices:
+  libs:
+    essential:
+      - libc6_libs
+      - libtirpc3_libs
+    contents:
+      /usr/lib/*-linux-*/libnsl.so.2*:

slices/libpython3.11-minimal.yaml

@@ -0,0 +1,113 @@
+package: libpython3.11-minimal
+
+# Most of the python3.11 standard libraries are split into
+# two major packages:
+# - libpython3.11-minimal (this one)
+# - libpython3.11-stdlib
+# While the libpython3.11-stdlib package has been chiselled logically
+# into granular slices, the same hasn't been done for this package.
+# The reason is simple, the libraries in this package are tightly
+# dependent upon each other.
+slices:
+  config:
+    contents:
+      /etc/python3.11/sitecustomize.py:
+
+  libs:
+    essential:
+      - libc6_libs
+      - libpython3.11-minimal_config
+      - libssl3_libs
+    contents:
+      /usr/lib/python3.11/__future__.py:
+      /usr/lib/python3.11/_collections_abc.py:
+      /usr/lib/python3.11/_compat_pickle.py:
+      /usr/lib/python3.11/_py_abc.py:
+      /usr/lib/python3.11/_sitebuiltins.py:
+      /usr/lib/python3.11/_strptime.py:
+      /usr/lib/python3.11/_sysconfigdata__*-linux-*.py:
+      /usr/lib/python3.11/_threading_local.py:
+      /usr/lib/python3.11/_weakrefset.py:
+      /usr/lib/python3.11/abc.py:
+      /usr/lib/python3.11/argparse.py:
+      /usr/lib/python3.11/ast.py:
+      /usr/lib/python3.11/base64.py:
+      /usr/lib/python3.11/bisect.py:
+      /usr/lib/python3.11/calendar.py:
+      /usr/lib/python3.11/codecs.py:
+      /usr/lib/python3.11/collections/**:
+      /usr/lib/python3.11/compileall.py:
+      /usr/lib/python3.11/configparser.py:
+      /usr/lib/python3.11/contextlib.py:
+      /usr/lib/python3.11/copy.py:
+      /usr/lib/python3.11/copyreg.py:
+      /usr/lib/python3.11/csv.py:
+      /usr/lib/python3.11/datetime.py:
+      /usr/lib/python3.11/dis.py:
+      /usr/lib/python3.11/email/**:
+      /usr/lib/python3.11/encodings/**:
+      /usr/lib/python3.11/enum.py:
+      /usr/lib/python3.11/filecmp.py:
+      /usr/lib/python3.11/fnmatch.py:
+      /usr/lib/python3.11/functools.py:
+      /usr/lib/python3.11/genericpath.py:
+      /usr/lib/python3.11/getopt.py:
+      /usr/lib/python3.11/glob.py:
+      /usr/lib/python3.11/hashlib.py:
+      /usr/lib/python3.11/heapq.py:
+      /usr/lib/python3.11/imp.py:
+      /usr/lib/python3.11/importlib/**:
+      /usr/lib/python3.11/inspect.py:
+      /usr/lib/python3.11/io.py:
+      /usr/lib/python3.11/ipaddress.py:
+      /usr/lib/python3.11/keyword.py:
+      /usr/lib/python3.11/lib-dynload/_hashlib.cpython-311-*-linux-*.so:
+      /usr/lib/python3.11/lib-dynload/_ssl.cpython-311-*-linux-*.so:
+      /usr/lib/python3.11/linecache.py:
+      /usr/lib/python3.11/locale.py:
+      /usr/lib/python3.11/logging/**:
+      /usr/lib/python3.11/opcode.py:
+      /usr/lib/python3.11/operator.py:
+      /usr/lib/python3.11/optparse.py:
+      /usr/lib/python3.11/os.py:
+      /usr/lib/python3.11/pathlib.py:
+      /usr/lib/python3.11/pickle.py:
+      /usr/lib/python3.11/pkgutil.py:
+      /usr/lib/python3.11/platform.py:
+      /usr/lib/python3.11/posixpath.py:
+      /usr/lib/python3.11/py_compile.py:
+      /usr/lib/python3.11/quopri.py:
+      /usr/lib/python3.11/random.py:
+      /usr/lib/python3.11/re/**:
+      /usr/lib/python3.11/reprlib.py:
+      /usr/lib/python3.11/runpy.py:
+      /usr/lib/python3.11/selectors.py:
+      /usr/lib/python3.11/signal.py:
+      /usr/lib/python3.11/site.py:
+      /usr/lib/python3.11/sitecustomize.py:
+      /usr/lib/python3.11/socket.py:
+      /usr/lib/python3.11/sre_compile.py:
+      /usr/lib/python3.11/sre_constants.py:
+      /usr/lib/python3.11/sre_parse.py:
+      /usr/lib/python3.11/ssl.py:
+      /usr/lib/python3.11/stat.py:
+      /usr/lib/python3.11/string.py:
+      /usr/lib/python3.11/stringprep.py:
+      /usr/lib/python3.11/struct.py:
+      /usr/lib/python3.11/subprocess.py:
+      /usr/lib/python3.11/sysconfig.py:
+      /usr/lib/python3.11/tempfile.py:
+      /usr/lib/python3.11/textwrap.py:
+      /usr/lib/python3.11/threading.py:
+      /usr/lib/python3.11/token.py:
+      /usr/lib/python3.11/tokenize.py:
+      /usr/lib/python3.11/traceback.py:
+      /usr/lib/python3.11/tracemalloc.py:
+      /usr/lib/python3.11/types.py:
+      /usr/lib/python3.11/typing.py:
+      /usr/lib/python3.11/urllib/**:
+      /usr/lib/python3.11/uu.py:
+      /usr/lib/python3.11/warnings.py:
+      /usr/lib/python3.11/weakref.py:
+      /usr/lib/python3.11/zipfile.py:
+      /usr/lib/python3.11/zipimport.py: