settings API for Fastfile.swift

Fastfile.swift

settings().minFastlaneVersion = "2.69.3"
settings().teamId = "ABCDEFG"
settings().myPlugin().pluginSetting = true

settings {
    s in
    s.minFastlaneVersion = "2.69.3"
    s.teamId = "ABCDEFG"
    s.myPlugin {
        p in
        p.pluginSetting = true
    }
}

settings(
    minFastlaneVersion: "2.69.3",
    teamId: "ABCDEFG",
    myPlugin: [
        "pluginSetting": true
    ]
)