Improve the cluster resource template as per the suse best practises guide

[Simranpal]

Peter Schinagl identified some improvements to cluster_resources.j2. and differences to BestPractice SAP_NW740_SLE15 :

1. "property cib-bootstrap-options" is only available for AWS
   and is different to BestPractice
   rsc_defaults rsc-options: is only available for AWS
   op_defaults op-options: is only available for AWS

2. Structure of the cluster_resources could be grouped to made it better
   readable e.g. have all IP settings together as a block, similar for the other parts

3. rsc_socat should be replaced by the azure-lb resource agent

4. primitive rsc_sap_{{ sid }}_ASCS{{ ascs_instance }} SAPInstance
op monitor interval=120 vs op monitor interval=11 on BestPractice;
   same for the ERS primitive

5. ERS group has meta resource stickiness vs none on best BestPractice

https://documentation.suse.com/sbp/all/single-html/SAP_NW740_SLE15_SetupGuide/

[Simranpal]

Some points I did not cover :
2. Changing the structure/grouping of cluster resources.
We are grouping it by cloud provider and it seems better approach and will reduce the extra if/else conditions needed otherwise

3.rsc_socat should be replaced by the azure-lb resource agent.
We are already using the azure-lb with socat. I think we don't need to replace it with nc again.

[arbulu89]

@Simranpal @petersatsuse
-The point 1 is done this by on purpose. Our guide was for AWS. Azure best practices guide doesn't say in any point to use this values: https://docs.microsoft.com/en-us/azure/virtual-machines/workloads/sap/high-availability-guide-suse

• The point 4. The same, our best practices for AWS say to use 120s: https://documentation.suse.com/sbp/all/html/SAP_HA740_SetupGuide_AWS/index.html

We cannot really know what to put there for each of the providers. We just followed the guides

[Simranpal]

@diegoakechi cc
Some of the suggestions were made by @petersatsuse as above. However, we set the properties based on the guides and I am not sure if these values need to be set for all providers or for which ones to set.

[petersatsuse]

I did start a overview table for the various scenarios - i thought i had sent it around.
You are right, some of the suggestions need to be set according to the specific documents for CSP.
I will sent it again...try to have a look, its a start, but i think we need to maintain such a kind of document for the various scenarios