Should we use gRPC or http for nitro <-> triton

[tikikun]

HTTP PROS:

• No more dependencies since drogon can be the client itself
• Very lean code can leverage compression for speed up if needed

gRPC PROS:

• Better for high throughput
• Add a lot of dependencies to manage
• Nvidia triton client codebase is not supporting multiple system

Refer to this issue
#33

[hiro-v]

Decision: Use HTTP to Triton