Add deck-roulette plugin with tag 1.1.5

[Chrisae9]

Deck Roulette Revival

The Deck-Roulette plugin provides a roulette-style game selection experience for users, allowing them to randomly choose games from their library.

Background:
The plugin was removed from the store due to the original developer's absence. I reached out in the DeckRoulette support thread in the main Discord but have not received a response. Despite this, I've noticed continued interest from users, as many have been installing the plugin from my fork via zip files.

Changes Made:
I have forked the original repository and made updates to restore the plugin's functionality. This PR aims to provide a working version back in the store for the community's continued use.

Commitment to Maintenance:
I am willing to take on the maintenance of this plugin moving forward to ensure it remains functional and meets the needs of users.

Developer Checklist

• I am the original author or an authorized maintainer of this plugin.
• I have abided by the licenses of the libraries I am utilizing, including attaching license notices where appropriate.

Plugin Checklist

• I have verified that my plugin works properly on the Stable and Beta update channels of SteamOS.
• I have verified my plugin is unique or alternatively provides more/alternative functionality to a similar plugin already on the store.

Plugin Backend Checklist

• No: I am using a custom backend other than Python.
• No: I am using a tool or software from a 3rd party FOSS project that does not have it's dependencies statically linked.
• No: I am using a custom binary that has all of it's dependencies statically linked.

Testing

• Tested on SteamOS Stable/Beta Update Channel.

• Tested on SteamOS Preview Update Channel.