[New Data Source]: Huawei Cloud Eye & Huawei Log tank Service

### Background we are uwing huawei cloud and cant find data source related to cloud eye and log tank service ### Use case get log and metric from reource on huawei cloud ### Contribution - [ ] Are you looking to create the plugin? - [ ] Are you affiliated with the project/product the data source integrates with? - [ ] Does the plugin integrate with a commercial product?