Fail when faulty recipes are provided during oneshot

[dsikka]

Describe the bug

• Invalid recipes should throw an error

• Currently, the following recipe is accepted as a valid recipe, however, the group_0 key should be under config_groups

quant_stage:
  quant_modifiers:
    GPTQModifier:
      ignore: ["lm_head"]
      group_0:
        weights:
          num_bits: 4
          type: "int"
          symmetric: true
          strategy: "group"
          group_size: 128
          actorder: "group"
          observer: "mse"
        targets: ["Linear"]

Expected behavior

• Throw a clear error letting the user know their provided recipe is invalid
• Indicate the issue in the provided recipe