esp32_partition_app3904k_fs3392k partition scheme for 8MB ESP32S3

[s-hadinger]

Description:

Add a new partition scheme for 8MB Flash, for ex ESP32S3 N8R8, allowing for bigger application sizes:

• 3904 KB program size
• 3392 KB filesystem

Checklist:

• The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works with Tasmota core ESP8266 V.2.7.6
• The code change is tested and works with Tasmota core ESP32 V.3.0.0
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass