[CELEBORN-688] Add JVM metrics grafana template

### What changes were proposed in this pull request?
Currently there is no JVM metrics grafana template, nor in grafana labs. For better use, it is necessary to add one.
According the change in #1939
This template uses two variables(instance, pool).
The layout is divided into 5 rows.
![image](https://github.com/apache/incubator-celeborn/assets/19429353/732cff90-463c-47b5-89b8-fa8dbbf33b1e)

The panels with g1 look like below：
![image](https://github.com/apache/incubator-celeborn/assets/19429353/919b7e9e-f86a-4341-a004-7f0394e1d8b2)

JVM Memory Pools row uses replicated panel mode which panels are automatically deplicated by `pool` variables.
![image](https://github.com/apache/incubator-celeborn/assets/19429353/3bdf7a3c-d4e0-42ea-bbe0-012da55a61d1)
![image](https://github.com/apache/incubator-celeborn/assets/19429353/8feaf9b7-156d-453e-8188-40a0399ea516)
![image](https://github.com/apache/incubator-celeborn/assets/19429353/cba4b61c-7d66-4893-9f07-6157c64869bd)
![image](https://github.com/apache/incubator-celeborn/assets/19429353/09b473ef-434c-4fd0-aa4b-084f7588a4f7)

### Why are the changes needed?
Ditto

### Does this PR introduce _any_ user-facing change?
Yes, this dashboard is based on changes in #1939

### How was this patch tested?
Cluster test

Closes #1964 from onebox-li/add-jvm-dashboard.

Authored-by: onebox-li <[email protected]>
Signed-off-by: zky.zhoukeyong <[email protected]>