feature: 增加水印去除/高级匿名化算子 (#151)

* feature: 增加水印去除算子

* feature: clean code

* feature: clean code

* feature: 增加高级匿名化算子

runtime/ops/mapper/pii_ner_detection/metadata.yml

@@ -0,0 +1,9 @@
+name: '高级匿名化'
+language: 'Python'
+vendor: 'others'
+raw_id: 'PiiDetector'
+version: '1.0.0'
+description: '高级匿名化算子，检测命名实体并匿名化。'
+modal: 'text'
+inputs: 'text'
+outputs: 'text'