IMA API InputConnection#replaceText()

Add InputConnecton#replaceText(int, int, CharSequence, int, TextAttribute) API to support replacing the specific range in the editor with suggested text.

Add default implementation in InputConnection which delegates to call
finishComposingText()+setSelection()+commitText().

Add implementation in BaseInputConnection which will address the issue
of selection flash.

Bug: 241503197

Test: atest FrameworksCoreTests:BaseInputConnectionTest
Test: atest CtsInputMethodTestCases:BaseInputConnectionTest

Change-Id: Ia0e42270cfae112fcf19205a7151e4ab4ac4afdd