Add multiple datatype support and enable match tensor array for http api

[Ami11111]

What problem does this PR solve?

• Add uint8, float16, bfloat16 datatype support for http api knn
• enable match tensor array for http api
• fix http api bug that can not insert multiple tensorarray at once

Type of change

• [x] Bug Fix (non-breaking change which fixes an issue)
• [x] New Feature (non-breaking change which adds functionality)
• [x] Test cases