[native] port nnstreamer_sink_example_play to Python

[tony-jinwoo-ahn]

port nnstreamer_sink_example_play.c to Python

Usage: $ python nnstreamer_sink_example_play.py

Resolves: #155

Self evaluation:

1. Build test: [ * ]Passed [ ]Failed [ ]Skipped
2. Run test: [ * ]Passed [ ]Failed [ ]Skipped

[taos-ci]

:memo: Version: 1.20190225. Thank you for submitting PR #165. Your PR must pass all verificiation processes of cibot before starting a review process from reviewers. If you are new member to join this project, please read manuals in documentation folder and wiki page. In order to monitor a progress status of your PR in more detail, visit http://nnsuite.mooo.com/.

[taos-ci]

We generate a report if there are dangerous coding constructs in your code. Please read http://nnsuite.mooo.com/nnstreamer-example/ci/repo-workers/pr-checker/165-202008120100250.7062520980835-6bd994ac27211777b989754f0d79d2c0215c55fd/report/pylint_result.txt.

[taos-ci]

We generate a report if there are dangerous coding constructs in your code. Please read http://nnsuite.mooo.com/nnstreamer-example/ci/repo-workers/pr-checker/165-202008131036250.89474892616272-8d0867b07fa9fa3f9765555b12d965cb5cb37590/report/pylint_result.txt.

[myungjoo]

ps. Adding a README.md into the directory, showing "how to use" and screenshots would be fantastic.,

[tony-jinwoo-ahn]

ps. Adding a README.md into the directory, showing "how to use" and screenshots would be fantastic.,

OK, thank you!