* Nodes can be called concurrently and Compute needs to be stateless due to that.
Update the kernels to make Compute const.
* Fix test that uses ustring.h.
Would be better to not have duplicate declarations for GetTensorMutableDataString and FillTensorDataString in ustring.h and string_tensor.h.
* fix the break in release pipeline
* code cleanup and the warnings fixing.
* Update ci.yml for Azure Pipelines
* Update ci.yml for Azure Pipelines
* fix linux build
* one more fixing
* again?
* fixing for macOS