Fix required_memory_mb for MPS and extended stabilizer

[doichanj]

Summary

This is the fix for required_memory_mb that returned wrong (larger) memory size for MPS and extended stabilizer.
Fix for issues #1920 , #1921 and #1927

Details and comments

required_memory_mb for MPS returned only initial size and returned size in byte not MB so it was very large. I added size estimator to calculate max bond dimension and now it returns reasonable memory size.
This size estimation only calculates size of tensors from the input operators and it takes ignorable time, but I think it is not good to call this multiple times. Before this fix, required_memory_mb was called from some functions. I changed to call this once at the beginning of simulation.

required_memory_mb for extended stabilizer did not refer to the configurable option extended_stabilizer_approximation_error becuase State::set_config was not called before calling required_memory_mb.
The issue #1921 and #1927 are not resolved as is, but we can decrease required memory size by setting larger extended_stabilizer_approximation_error option.

[hhorii]

Now LGTM.