Provide API to override/set data objects and search attributes directly

[longquanzheng]

This will be more flexible to use for operations. This can be used to change workflow input with reset(resetting to beginning will preserve the signals and reapply to the beginning of the workflow).

E.g. the client experience will be like for data attributes:

iwfClient.setDataAttribute(workflowId, key, value);
iwfClient.setDataAttributes(workflowId,  list.Of(key,value, key, value ...);

Similar to Search attributes.

Implementation Idea:

• Just send a executeRPC signal to update the DA/SA values.

[longquanzheng]

Also need to build the versioning by default internally, so that it can provide locking mechanism.

Maybe use temporal update api instead of signal