fix(codecov):add ignore configuration
fix(codecov):add ignore configuration

- ignore all md files
- ignore all yaml files
- ignore non source code folders: docs,api,make,contrib,tests,tools
- ignore source code vendor folder: src/vendor
- ignore folders for auto-generated code: "src/server/v2.0/models" and "src/server/v2.0/restapi"

Signed-off-by: Steven Zou <5c7d09ecc61eee689df7048be4e7fb1d1e0b8ebc@vmware.com>

reasonerjt/harbor,wy65701436/harbor,reasonerjt/harbor,reasonerjt/harbor,wy65701436/harbor,reasonerjt/harbor,wy65701436/harbor,reasonerjt/harbor,wy65701436/harbor,wy65701436/harbor,reasonerjt/harbor,wy65701436/harbor