feat: Pull in EKS APIs (#1253)

**What problem does this PR solve?**:

Adds EKS APIs to external to start work on EKS support in CAREN.

**Which issue(s) this PR fixes**:
Fixes #

**How Has This Been Tested?**:
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This depends on upstream changes that have been merged but not released
so we need to wait until we get a CAPA release that includes the EKS
ClusterClass support.

Author: jimmidyson

api/external/sigs.k8s.io/cluster-api-provider-aws/v2/bootstrap/eks/api/v1beta2/condition_consts.go

@@ -0,0 +1,50 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1beta2
+
+import clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1"
+
+// Conditions and condition Reasons for the EKSConfig object
+// FROM: https://github.com/kubernetes-sigs/cluster-api/blob/main/bootstrap/kubeadm/api/v1beta1/condition_consts.go
+
+const (
+	// DataSecretAvailableCondition documents the status of the bootstrap secret generation process.
+	//
+	// NOTE: When the DataSecret generation starts the process completes immediately and within the
+	// same reconciliation, so the user will always see a transition from Wait to Generated without having
+	// evidence that BootstrapSecret generation is started/in progress.
+	DataSecretAvailableCondition clusterv1.ConditionType = "DataSecretAvailable"
+
+	// DataSecretGenerationFailedReason (Severity=Warning) documents a EKSConfig controller detecting
+	// an error while generating a data secret; those kind of errors are usually due to misconfigurations
+	// and user intervention is required to get them fixed.
+	DataSecretGenerationFailedReason = "DataSecretGenerationFailed"
+
+	// WaitingForClusterInfrastructureReason (Severity=Info) document a bootstrap secret generation process
+	// waiting for the cluster infrastructure to be ready.
+	//
+	// NOTE: Having the cluster infrastructure ready is a pre-condition for starting to create machines;
+	// the EKSConfig controller ensure this pre-condition is satisfied.
+	WaitingForClusterInfrastructureReason = "WaitingForClusterInfrastructure"
+
+	// WaitingForControlPlaneInitializationReason (Severity=Info) documents a bootstrap secret generation process
+	// waiting for the control plane to be initialized.
+	//
+	// NOTE: This is a pre-condition for starting to create machines;
+	// the EKSConfig controller ensure this pre-condition is satisfied.
+	WaitingForControlPlaneInitializationReason = "WaitingForControlPlaneInitialization"
+)

api/external/sigs.k8s.io/cluster-api-provider-aws/v2/bootstrap/eks/api/v1beta2/conversion.go

@@ -0,0 +1,29 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1beta2
+
+// Hub marks EKSConfig as a conversion hub.
+func (*EKSConfig) Hub() {}
+
+// Hub marks EKSConfigList as a conversion hub.
+func (*EKSConfigList) Hub() {}
+
+// Hub marks EKSConfigTemplate as a conversion hub.
+func (*EKSConfigTemplate) Hub() {}
+
+// Hub marks EKSConfigTemplateList as a conversion hub.
+func (*EKSConfigTemplateList) Hub() {}

api/external/sigs.k8s.io/cluster-api-provider-aws/v2/bootstrap/eks/api/v1beta2/doc.go

@@ -0,0 +1,21 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package v1beta2 contains API Schema definitions for the Amazon EKS Bootstrap v1beta2 API group.
+// +gencrdrefdocs:force //nolint: revive
+// +groupName=bootstrap.cluster.x-k8s.io
+// +k8s:conversion-gen=sigs.k8s.io/cluster-api-provider-aws/v2/bootstrap/eks/api/v1beta1
+package v1beta2