Merge "change email" into v8.0-pre

Release 7.0 doc (ApolloAuto#14245)

* prediction: jointly_prediction_planning_model: update model,interaction with smoothing (vectornet-tnt)

Change-Id: I18f80ffac351e697792c6fc9eb494482d68ed6df

* Release 7.0

Change-Id: I43833d94da94f93e400631f6f17b9a2c0745b39e

* Release 7.0

Change-Id: I4d994e9f5f93cdb3c9b4fdfaca61fa0e55a0123a

RELEASE: fixed typos

fix misleading component testcase names

Map: Simple code clean of map data checker.

removing conflict

Navigation planning: fixed test.

add imu vehicle calibration tool, also add ceres-solver to docker fil…

…e. note that, the ceres solver version provided by apt is 1.8.

Planning: reduced s number in st_graph to avoid too much computation …

…time.

Merge remote-tracking branch 'apollo_1.5' into apollo