Global router support

add support for global router #Jira:FLKR-3967 (#90)

* add support for global router #Jira:FLKR-3967

* add notifyOn

Metric alert dynamic duration

adding support for forOver dynamic duration in metric threshold alerts

Notification log-example

Changed notification group type from repeated to map

Percentage of deviation

adding percentage of deviation for anomaly alerts under anomaly_alert_settings

evaluation_delay_ms

evaluation_delay_ms

Add Support for Notification-Center

add support for notification_center (#81)

* add support for notification_center

* align to correct schema

* add new schema for new notification event

* remove logExample from any group

* update version for supporting one destionation with two NotificationRouting

* review by Zvika

* reviewd by RLRL

* final version

v0.5.5

Add internal api

Alerts API v3 - add get alert def by version id

adding a route to get alert def by version id (including deleted alerts)

Alerts API V3 - changing tracing filter to bigger int

changing in tracing filter the field latency_threshold_ms to be uint64 from uint32

Alerts API v3 - adding notificationGroupExcess

Due to a deprecation of multiple notification groups in this api, we've added a way to represent the excess fields that will be deleted in case some users still have more than one.
notificationGroupExcess will be representing the fields to be deleted in the future when the deprecation is done.