runtime独有能力 有demo docs/device/accelerometer.md docs/device/compass.md docs/device/contact.md docs/device/gyroscope.md docs/device/screen.md docs/mbaas/face.md docs/mbaas/tts.md 没有demo docs/mbaas/pcs.md docs/mbaas/mediaplayer.md docs/device/notification.md 服务导航能力 docs/lego/smartBar.md