Create config reference for manager settings

[byDimasik]

We've migrated some settings from the old MKE 3 TOML config to the new MKE 4 yaml config. The migrated settings are

EtcdStorageQuota
KubeAPIServerProfilingEnabled
KubeControllerManagerProfilingEnabled
KubeSchedulerProfilingEnabled
KubeSchedulerBindToAll
CipherSuitesForAPIServer
CipherSuitesForEtcdServer
KubeAPIServerAuditing
KubeAPIServerAuditLogMaxAge
KubeAPIServerAuditLogMaxBackup
KubeAPIServerAuditLogMaxSize
K8sEventRateLimit
KubeManagerTerminatedPodGCThreshold
K8sAlwaysPullImagesACEnabled
KubeAPIServerRequestTimeout
UnauthenticatedHTTP2DOSMitigation

Their descriptions can be found in MKE 3 docs - https://docs.mirantis.com/mke/3.7/ops/administer-cluster/configure-an-mke-cluster/configuration-options.html

MKE 3 docs are missing some of these settings, so, please feel free to reach out to me if you need help writing descriptions.

In the MKE 4 config file, the migrated settings look like this

spec:
  apiServer:
    profilingEnabled: false
    tlsCipherSuites: []
    audit:
      enabled: false
      logPath: /var/lib/k0s/audit.log
      maxAge: 30
      maxBackup: 10
      maxSize: 10
    eventRateLimit:
      enabled: false
      limits:
      - limit: ""
        limitQPS: 0
        limitBurst: 0
        limitCacheSize: 0
    requestTimeout: 1m0s
    alwaysPullImages: false
    unauthenticatedHTTP2DOSMitigation: false
  etcd:
    storageQuota: ""
    tlsCipherSuites: []
  controllerManager:
    profilingEnabled: false
    terminatedPodGCThreshold: 12500
  scheduler:
    profilingEnabled: false
    bindToAll: false

Here is 1-1 mapping

MKE 3 TOML name	MKE 4 .spec
EtcdStorageQuota	.spec.etcd.storageQuota
CipherSuitesForEtcdServer	.spec.etcd.tlsCipherSuites
KubeAPIServerProfilingEnabled	.spec.apiServer.profilingEnabled
CipherSuitesForAPIServer	.spec.apiServer.tlsCipherSuites
KubeAPIServerAuditing	.spec.apiServer.audit.enabled
KubeAPIServerAuditLogMaxAge	.spec.apiServer.audit.maxAge
KubeAPIServerAuditLogMaxBackup	.spec.apiServer.audit.maxBackup
KubeAPIServerAuditLogMaxSize	.spec.apiServer.audit.maxSize
K8sEventRateLimit	.spec.apiServer.eventRateLimit
K8sAlwaysPullImagesACEnabled	.spec.apiServer.alwaysPullImages
KubeAPIServerRequestTimeout	.spec.apiServer.requestTimeout
UnauthenticatedHTTP2DOSMitigation	.spec.apiServer.unauthenticatedHTTP2DOSMitigation
KubeSchedulerBindToAll	.spec.scheduler.bindToAll
KubeSchedulerProfilingEnabled	.spec.scheduler.profilingEnabled
KubeControllerManagerProfilingEnabled	.spec.controllerManager.profilingEnabled
KubeManagerTerminatedPodGCThreshold	.spec.controllerManager.terminatedPodGCThreshold