tempwork data

Signed-off-by: ranger.shi <ranger.shi@gmail.com>
1.modify checkpoint,compare checkpoint height with chanActive tip height.
2.if don't have checkpoint block, disconnect block to checkpoint previous height.
3.checkblock function add checkpoint.
Signed-off-by: franklin <flin1866@gmail.com>
modify checkpoints

Signed-off-by: franklin <flin1866@gmail.com>
Merge remote-tracking branch 'remotes/franklin/master' into workspace
merge franklin's code than commit it

Signed-off-by: spark.huang <240401736@qq.com>
rang.shi made some fix

Signed-off-by: spark.huang <240401736@qq.com>
remote a small bug

Signed-off-by: spark.huang <240401736@qq.com>
CR : fix a bug about checkpoint relay.