…logic for observer in a RecourceWatcher class; added method to stop a thread gracefully

…that handles the logic to unsuspend jobs and get the next in order according to the creation timestamp; modify schedule endpoint to start jobs suspended if there is already enogh jobs running; modify corresponding function in k8s launcher; add to k8s launcher methods to unsuspend job, to get current number of running jobs, to list suspended jobs and a private method to get job name to be used for unsuspend function

…source watcher instance to enable_joblogs to subscribe to the event watcher if the log feature is configured; delete logic about event watcher from main; pass container for list objects function instead of container name; remove start methon from log handler class; modify joblogs init to subscribe to event watcher

…rs and run more from the queue of created jobs when capacity is available; add backgroung thread that sleeps for 5 sec and triggers the function that starts additional containers up to capacity; add a method to gracefully stop the background thread that might be used in the future to stop the thread when app stops; encapsulate k8s and docker related schedule functionality in corresponding launchers and keep api.py launcher agnostic; add max_proc to config for docker

…nd patch is sufficient