feat(config): Add `preferredLoginMethod` to Team Config

[zFernand0]

Is your feature or enhancement request related to a problem or limitation? Please describe

User may want to specify a default login method when accessing services via the API Mediation Layer

Describe your enhancement idea

Add a new property to Team Config as a sibling of authOrder that will allow users to set a preferred login method (preferredLoginMethod)

const enum PreferredLoginMethod {
  BASIC = 'basic',
  API_ML_TOKEN = `apiMlToken',
  API_ML_CERT = `apiMlCertificate`
}

Describe alternatives you've considered

N/A

Provide any additional context

This enhancement request came up when discussing the issue below:

• An ability to select a preferred login method via Team Config zowe-explorer-vscode#4078

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Added label priority-low tentatively until we have more info.

[github-actions]

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[zFernand0]

Originally:

• Added label needs-more-info to indicate that we are waiting for after-SHARE discussions to take place 🙏

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UPDATE:
When this is addressed, we are thinking that this property should be a per-profile property (similar to authOrder).

const enum PreferredLoginMethod {
  BASIC = 'basic',
  API_ML_CERT = `apiMlCertificate`
}

We should not allow for apimlToken to be in this enum. One use case for apimlToken could be to refresh a token before it expires.