Changes

Summary

1. fix: routing extending backward for bend. (details)
2. fix:可能崩溃的bug (details)
3. fix:修复封路变道的bug (details)
4. fix:引桥前变道的bug (details)
5. fix:变道的bug (details)
6. fix:修复合并的bug (details)
7. fix:修复合并的bug (details)

Commit d13f020e2a5745bf6b232eef5a9631ea4ccfcbdb by wuyanjun110 fix: routing extending backward for bend.
	data/map/pnc_map/routing_extension/routing_data.cpp
Commit 738aaaba5f439f2d4a28b77838a9ea5a683e56e3 by wuyanjun110 fix:可能崩溃的bug
	data/plan/switch_data.cpp
Commit 7f28a0847eac1d83d25da318dd33595b7654d0b2 by wuyanjun110 fix:修复封路变道的bug
	data/map/reference/center_line.cpp
Commit d34c973a3b488e38a50e8fb80883a99a016c0702 by wuyanjun110 fix:引桥前变道的bug
	data/plan/switch_data.cpp
Commit c49619cffafe7c6fa46f5a961cd4d0ca5ac3d2dc by wuyanjun110 fix:变道的bug
	data/map/reference/center_line.cpp
Commit 6c32fe6149effdf03a337fd1709353a36456cce6 by wuyanjun110 fix:修复合并的bug
	data/plan/switch_data.cpp
Commit 069ea6786697010789b21ee0541a48cd1b5b3bb9 by wuyanjun110 fix:修复合并的bug
	data/plan/switch_data.cpp