* Localization: Add data extraction content and pose compare tool.

* Localization: fix typo bug.

* Create Software_FAQ.md

* Create General_FAQs.md

* Rename Software_FAQ.md to Software_FAQs.md

* Create Hardware_FAQs.md

* Update General_FAQs.md

* Update Software_FAQs.md

* Update Software_FAQs.md

* Update Software_FAQs.md

* Create Calibration_FAQs.md

* Update Calibration_FAQs.md

* Delete FAQ0.md

* Delete FAQ0_cn.md

* Delete FAQ1.md

* Delete FAQ1_cn.md

* Delete FAQ2.md

* Delete FAQ2_cn.md

* Create how_to_install_ubuntu.md

* Update how_to_install_ubuntu.md

* Create how_to_install_apollo_kernel.md

* Update how_to_install_apollo_kernel.md

* Create how_to_build_your_own_kernel.md

Prediction: use acceleration from RNN model and add a gflag in conf file for tim thred to prediction trajectories

* change to use synchronize update vehicle state in pnc_map

* but print an error message for every 10 seconds, incase the user
really forget to provide prediction message

* script: record meta info into all bags.

* planning: add a gflag to protect nudge slowdown behavior.

* use the earliest time when user presses 'd'
* timestamp returned by rospy.Time.now() seems incorrect.

Localization: Add /apollo/localization/msf_gnss and /apollo/localization/msf_lidar topics in scripts/record_bag.sh. (#1929)