python-phonenumbers: initial integration (#9369)

Fuzzer for Python port of Google's libphonenumber

[Tests
mentioned](https://google.github.io/oss-fuzz/getting-started/new-project-guide/#testing-locally)
in docs have been run:
```
python infra/helper.py build_image python-phonenumbers
python infra/helper.py build_fuzzers --sanitizer address python-phonenumbers
python infra/helper.py check_build python-phonenumbers
python infra/helper.py run_fuzzer python-phonenumbers python_phonenumbers_fuzzer
```

projects/python-phonenumbers/Dockerfile

@@ -0,0 +1,27 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder-python
+
+RUN apt-get update && apt-get install -y make autoconf automake libtool
+RUN git clone --depth 1 https://github.com/daviddrysdale/python-phonenumbers.git python-phonenumbers
+RUN git clone --depth 1 https://github.com/rikfie/python-phonenumbers-fuzzer.git ppf && \
+    mv ppf/*_fuzzer.py $SRC/ && \
+    rm -rf ppf
+
+WORKDIR python-phonenumbers/python
+
+COPY build.sh $SRC/

projects/python-phonenumbers/build.sh

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+#!/bin/bash -eu
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+pip3 install --upgrade pip
+pip3 install .
+
+# Build fuzzers in $OUT.
+for fuzzer in $(find $SRC -name '*_fuzzer.py'); do
+  compile_python_fuzzer $fuzzer
+done

projects/python-phonenumbers/project.yaml

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+homepage: "https://github.com/daviddrysdale/python-phonenumbers"
+language: python
+primary_contact: "rik@purpleguy.nl"
+auto_ccs:
+    - "drysdale@google.com"
+main_repo: "https://github.com/daviddrysdale/python-phonenumbers.git"
+fuzzing_engines:
+    - libfuzzer
+sanitizers:
+    - address
+    - undefined