Make SelectTest append selectTest argument from extended class

This CL also moves CoreTestsFilter to frameworks/base/tests/utils, so
that FrameworksCoreTests, FrameworksServicesTests, and WmTests can use
CoreTestsFilter.

Test: Pass SelectTestTests
  $ atest WmTests:com.android.test.filters.SelectTestTests
Test: Pass all 85 WM related non-flaky presubmit tests in FrameworksCoreTests
  using CoreTestsFilter
  $ tradefed.sh run commandAndExit FrameworksCoreTests \
      --instrumentation-arg selectTest=com.android.server.wm.,com.android.server.am. \
      --instrumentation-arg filter=com.android.server.wm.test.filters.CoreTestsFilter
      --include-annotation android.platform.test.annotations.Presubmit \
      --exclude-annotation androidx.test.filters.FlakyTest
Test: Pass all 293 WM related non-flaky presubmit tests in
  FrameworksServicesTests using CoreTestsFilter
  $ tradefed.sh run commandAndExit FrameworksServicesTests \
      --instrumentation-arg selectTest=com.android.server.wm.,com.android.server.am. \
      --instrumentation-arg filter=com.android.server.wm.test.filters.CoreTestsFilter
      --include-annotation android.platform.test.annotations.Presubmit \
      --exclude-annotation androidx.test.filters.FlakyTest
Bug: 122451194
Change-Id: I83d13d9ef82a92677bee67da5ee8a5faa0690f82
Merged-In: I83d13d9ef82a92677bee67da5ee8a5faa0690f82