[FEAT] ENV variable to disable transcoding add-ons for the docker image

[me-2-you]

Feature Category

• Playback / Streaming
• UI / Interface
• Source Management (Xtream/M3U)
• EPG / Program Guide
• Settings / Configuration
• Other

Add an environment variable to disable video transcoding add-ons for the docker image
The hardware transcoding add-ons are ± 800 MB in size. For users who don't need this functionality, please create an environment variable to disable this functionality.

Or build a separate, slim image for software processing only.

Thanks.