GitLab

* track progress of iter&enum

* restore

* add momentum scheduler

* fix small bug

* cyclic scheduler"

* fix bug

* fix second phase's bug

* reformat

* feature (cosine lr): use relative ratio for more flexible scheduler

* Fix (runner): fix bugs in runner

* Refactor (hook): refactor cosing/cyclic LR/momentum hook with unittest

* Clean unnecessary files and reformat

* Fix memory key error when GPU is not avaliable

* Resolve comments

* Do not print momentum in text log

* Change hook register order

* Refactor max_iter

* Fix max_iter bugs in runner

* Enforce target_ratio to be either tuple or float