adds poetry, and pipx (#1655)

* adds poetry, and pipx

niche package managers added as a mentions

* Update content/roadmaps/108-python/content/105-python-package-managers/readme.md

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

content/roadmaps/108-python/content/105-python-package-managers/readme.md

@@ -1,3 +1,11 @@
 # Package Managers
 
 Package managers allow you to manage the dependencies (external code written by you or someone else) that your project needs to work correctly.
+
+`PyPI` and `Pip` are the most common contenders but here are some other options available as well:
+
+ - [**Poetry**](https://python-poetry.org/)
+   - Manages dependencies via isolation
+ - [**PIPX**](https://github.com/pypa/pipx)
+   - Isolation-based app deployment, so you don't have to affect the system or user PIP libraries
+   - Enables you to try individual python CLI tools without affecting other dependencies.