Consume configuration for TLS from zowe.network.server

[balhar-jakub]

Is your feature request related to a problem? Please describe.
The App Framework started supporting Zowe wide TLS configuration under zowe.network.server, to simplify configuration work, API ML should support the same.

zowe.network.server.listenAddresses: This is an array of strings of IPv4 or IPv6 addresses that servers will be instructed to listen on.
Default: - "0.0.0.0"

zowe.network.server.tls.maxTls: This is a string stating which TLS version to use as a maximum. The value can be one of "TLSv1.2", "TLSv1.3".
Default: `TLSv1.3"

zowe.network.server.tls.minTls: This is a string stating which TLS version to use as a minimum. The value can be one of "TLSv1.2", "TLSv1.3".
Default: `TLSv1.2"

zowe.network.server.tls.ciphers: This is an array of strings in the format of IANA cipher names. There are many possible values as seen here: https://testssl.sh/openssl-iana.mapping.html
Default: Changes regularly as needed for industry standards. A reference for likely ciphers is here: https://wiki.mozilla.org/Security/Server_Side_TLS

Describe the solution you'd like

zowe:
  network:
    server:
      listenAddresses:
      - "0.0.0.0"
      tls:
        maxTls: "TLSv1.3"
        minTls: "TLSv1.2"
        ciphers:
        - "TLS_AES_128_GCM_SHA256"
        - "TLS_AES_256_GCM_SHA384"
        - "TLS_CHACHA20_POLY1305_SHA256"

Linked docs issue is - zowe/docs-site#3685

[1000TurquoisePogs]

Please use this code if it is helpful. I started to make changes for APIML but did not finish, and never figured out how to do ciphers.
Most importantly this will help IPv6 support though!

aef60d4...ca3ee68

[1000TurquoisePogs]

I have updated the branch to include info discovered in #3601.
Perhaps someone would like to test if this branch satisfies this ticket? v2.x.x...feat/use-networking-standard-config

Keep in mind: zowe.yaml defines both client & server customization.
This branch has the following behavior:

server parameters: If component config, use. Else if global config, use. Else default.

client parameters: If component config, use. Else if global config, use. Else if server component config, use. Else if server global config, use. Else default

In effect, one can customize both server & client with server parameters alone, but can customize them separately if ever needed.