Added --iteration and --automation flags

[asmigosw]

Added flags:

1. --iteration: Number of iterations to run the inference after loading the QPC once.
2. --automation: If true, it prints input, output, and performance stats.

Example command: python -m QEfficient.cloud.infer --model_name gpt2 --batch_size 1 --prompt_len 32 --ctx_len 128 --mxfp6 --num_cores 16 --device_group [0] --prompt "My name is" --mos 1 --aic_enable_depth_first --iteration 2 --automation