[C++] Add Tensor and SparseTensor factory function with validations

[asfimport]

Now Tensor and SparseTensor only have their constructors, but not factory functions that validate the parameters.
We need such factory functions for creating Tensor and SparseTensor from parameters given from the external source.

Reporter: Kenta Murata / @mrkn
Assignee: Kenta Murata / @mrkn
Watchers: Rok Mihevc / @rok

PRs and other links:

• GitHub Pull Request #5862

_{Note: This issue was originally created as ARROW-6508. Please see the migration documentation for further details.}

[asfimport]

Antoine Pitrou / @pitrou:
Issue resolved by pull request 5862
#5862