This CL Moves IInputMethod from
com.android.internal.view
to
com.android.internal.inputmethod
to be consistent with other IME-related internal files.
This is a mechanical refactoring of internal details. There should be
no user/developer observable behavior change in this CL.
Bug: 234882948
Test: presubmit
Change-Id: I1a43c2ad1f932ecb9201b3958becb475fb2d718d