ZegoEffectsResourcesPathParam constructor Null safety

1. zego_effects_plugin
2. zego_effects_defines
3. ZegoEffectsResourcesPathParam
4. ZegoEffectsResourcesPathParam constructor

ZegoEffectsResourcesPathParam class

1. Constructors
2. ZegoEffectsResourcesPathParam
3. Properties
4. common
5. faceDetection
6. faceWhitening
7. makeup
8. pendant
9. rosy
10. segmentation
11. teeth