GitLab

* step 1 nnictl generate experimentId & merge folder

* step 2.1 modify .experiment structure

* step 2.2 add lock for .experiment rw in nnictl

* step 2.2 add filelock dependence

* step 2.2 remove uniqueString from main.js

* fix test bug

* fix test bug

* setp 3.1 add experiment manager

* step 3.2 add getExperimentsInfo

* fix eslint

* add a simple file lock to support stale

* step 3.3 add test

* divide abs experiment manager from manager

* experiment manager refactor

* support .experiment sync update status

* nnictl no longer uses rest api to update status or endtime

* nnictl no longer uses rest api to update status or endtime

* fix eslint

* support .experiment sync update endtime

* fix test

* fix settimeout bug

* fix test

* adjust experiment endTime

* separate simple file lock class

* modify name

* add 'id' in .experiment

* update rest api format

* fix eslint

* fix issue in comments

* fix rest api format

* add indent in json in experiments manager

* fix unittest

* fix unittest

* refector file lock

* fix eslint

* remove '__enter__' in filelock

* filelock support never expire
Co-authored-by: Ning Shang <nishang@microsoft.com>