Add Requirements Files for Python Application

Introduced requirements.piptools file for Python application, and updated requirements.txt according to it. The requirements.piptools file includes packages needed for the project that are then compiled into the requirements.txt file via pip-compile. This way, exact requirements including dependencies and their versions are documented for more deterministic builds.

See pip-tools package.

Author: mikeckennedy

apps/py/requirements.piptools

@@ -0,0 +1,11 @@
+# comments
+colorama
+bs4
+httpx
+flask
+sqlalchemy
+requests
+pytest
+pytest-mock
+pytest-clarity
+unsync

apps/py/requirements.txt

@@ -1,11 +1,89 @@
-# comments
-colorama
-bs4
-httpx
-flask
-sqlalchemy
-requests
-pytest
-pytest-mock
-pytest-clarity
-unsync
+#
+# This file is autogenerated by pip-compile with Python 3.12
+# by the following command:
+#
+#    pip-compile requirements.piptools
+#
+anyio==4.1.0
+    # via httpx
+beautifulsoup4==4.12.2
+    # via bs4
+blinker==1.7.0
+    # via flask
+bs4==0.0.1
+    # via -r requirements.piptools
+certifi==2023.11.17
+    # via
+    #   httpcore
+    #   httpx
+    #   requests
+charset-normalizer==3.3.2
+    # via requests
+click==8.1.7
+    # via flask
+colorama==0.4.6
+    # via -r requirements.piptools
+flask==3.0.0
+    # via -r requirements.piptools
+h11==0.14.0
+    # via httpcore
+httpcore==1.0.2
+    # via httpx
+httpx==0.25.2
+    # via -r requirements.piptools
+idna==3.6
+    # via
+    #   anyio
+    #   httpx
+    #   requests
+iniconfig==2.0.0
+    # via pytest
+itsdangerous==2.1.2
+    # via flask
+jinja2==3.1.2
+    # via flask
+markdown-it-py==3.0.0
+    # via rich
+markupsafe==2.1.3
+    # via
+    #   jinja2
+    #   werkzeug
+mdurl==0.1.2
+    # via markdown-it-py
+packaging==23.2
+    # via pytest
+pluggy==1.3.0
+    # via pytest
+pprintpp==0.4.0
+    # via pytest-clarity
+pygments==2.17.2
+    # via rich
+pytest==7.4.3
+    # via
+    #   -r requirements.piptools
+    #   pytest-clarity
+    #   pytest-mock
+pytest-clarity==1.0.1
+    # via -r requirements.piptools
+pytest-mock==3.12.0
+    # via -r requirements.piptools
+requests==2.31.0
+    # via -r requirements.piptools
+rich==13.7.0
+    # via pytest-clarity
+sniffio==1.3.0
+    # via
+    #   anyio
+    #   httpx
+soupsieve==2.5
+    # via beautifulsoup4
+sqlalchemy==2.0.23
+    # via -r requirements.piptools
+typing-extensions==4.9.0
+    # via sqlalchemy
+unsync==1.4.0
+    # via -r requirements.piptools
+urllib3==2.1.0
+    # via requests
+werkzeug==3.0.1
+    # via flask