Supports analyzing workloads in cluster scope by creating 'Analytics' in namespace 'crane-system' (#52)

* Supports analyzing workloads in cluster scope by creating 'Analytics' in namespace 'crane-system'.
Co-authored-by: yuyufei <yufeiyu@tencent.com>

refine node resource controller

refine agent

fix node cpu usage

1. Sorts imports
2. Updates Recommendation CR's generated names.
Co-authored-by: yuyufei <yufeiyu@tencent.com>

* Implements analytics & resource recommendation
Co-authored-by: yuyufei <yufeiyu@tencent.com>

use hour unit to preprocess time series

Update documents

add crane agent , int crane agent it contained the node-qos-ensurance-policy-controller

Use tsp to implement prediction-driven HPA

add start param for configure the dsp model update, add hour periodic

add code standards

fix set condition

refine tsp controller, fix some bug and remove some code

Recommendation controller

adapt to new api models

add metrics to track replicas history