Add fields to InputMessageBuilder

Added transformation fields to InputMessageBuilder. The purpose is to
enable motion event methods when stubbing messages in tests.

Bug: 297226446
Flag: EXEMPT refactor
Test: TEST=libinput_tests; m $TEST && $ANDROID_HOST_OUT/nativetest64/$TEST/$TEST --gtest_filter="ResamplerTest*"
Change-Id: Ic258d108d40287ef1d08751ab2f92d59e7e86f86
1 file changed