Add New Sample: Power Automate Desktop push a file into a Foundry Palantir Dataset

[lordneeko]

We're so eager to add your sample to this repository as soon as possible, but we need all samples follow the same structure.
To make sure we process it as soon as possible, make sure to follow these instructions.

Q	A
Bug fix?	no
New feature?	no
New sample?	yes
Related issues?	N/A

Solution Details

Q	A
Solution requires premium license	no
Which connectors are used?	N/A
Solution uses on-premises connectors?	no
Solution uses custom connectors?	no

What's in this Pull Request?

Please describe the changes in this PR. Sample description or details around bugs which are being fixed.
Power Automate Desktop Recipe file and README.md file

[lordneeko]

also @aprildunnam Should there be a repo created within pnp specifically for Power Automate Desktop. I've noticed that Microsoft doesn't seem to put much emphasis into promoting PAD, even though it is about to become VERY popular with it being a default application within Windows 11. The 'community help' for PAD is extremely small...and I would also love to see a dedicate "ideas" page for PAD. It appears to have a VERY slow development cycle.