Create Zowe level documentation about Certificate management

[jandadav]

Is your request for enhancement related to a problem? Please describe.

We are having descriptions and guides in several places about how to perform certificate related tasks and about TLS requirements and architecture.
For instance we have instructions in install section, we have instruction in apiml section...
Now with addition of keyring, the install and manage paths branch out and the current setup seems scattered and inadequate. Distinguishing between zowe components seems inappropriate.

Describe the solution you'd like

I would suggest creation of a page that lists the installation patterns:
for example Zowe with self-signed certs and keystore, Zowe with enterprise certs on keyrings ....
and I would create a list of scenarios
for example How to install, How to add new service, How to generate certs for new service, How to import to browser, How to trust new cert.....
and describe in detail what to do in each scenario

Related doc pages

https://docs.zowe.org/stable/user-guide/configure-certificates.html#generate-certificate-with-the-default-values
https://docs.zowe.org/stable/extend/extend-apiml/api-mediation-security.html#certificate-management-in-zowe-api-mediation-layer

Additional context

Your comments and thoughts are welcome!