[Move selected_rows PR #4] SelectedRows inherits from TensorBase.

[veyron95]

PR types

Others

PR changes

Others

Describe

A series of jobs where selected_rows moves from Fluid to Pten.
There are 5 PR to complete the migration work in expected.

PR 1: Renamed selected_rows.* to selected_rows_utils.* PR39037
PR 2: Added selected_rows.* and rw_lock.h to Pten PR39087
PR 3: Change the relationship of [include/Cmake. PR39128

1. Delete Class SelectedRows in selected_rows_utils.* under Fluid, leaving only a few serialization methods;
2. Modify the [include/cmake] relationship;
3. Use pten::SelectedRows in Fluid;
4. Remove rw_lock.h, rw_lock_test.cc in Fluid;

This is PR4:

Selected_Rows inherits from TensorBase.

follow-up work:

PR 5: VisitDataType -> Pten::DataType.