ldm add plms sampler

lama_cleaner/schema.py

@@ -9,8 +9,14 @@ class HDStrategy(str, Enum):
     CROP = 'Crop'
 
 
+class LDMSampler(str, Enum):
+    ddim = 'ddim'
+    plms = 'plms'
+
+
 class Config(BaseModel):
     ldm_steps: int
+    ldm_sampler: str
     hd_strategy: str
     hd_strategy_crop_margin: int
     hd_strategy_crop_trigger_size: int