MLECO-6490 Adding Visual input support to the LLM
- QWEN-2 models added to resources to download
- LLM vision implementation files added
- LLM encode function updated to use EncodePayload instead of string
- Include supported input/output modalities in LLM
Signed-off-by: Eanna O Cathain eanna.ocathain@arm.com Change-Id: I9859cc7971fe75ad20a961f6eb15fe0aed57d0e1