Merge pull request #52753 from munnerz/sample-controller

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

sample-controller: add example CRD controller

**What this PR does / why we need it**:

Adds a sample-controller example repository

fixes #52752

**Special notes for your reviewer**:

This is currently based on the sttts:sttts-codegen-scripts branch and should not be merged until that is (ref https://github.com/kubernetes/kubernetes/pull/52186)

**Release note**:

```
Add sample-controller repository
```

/cc @sttts @nikhita @colemickens

Kubernetes-commit: 9a7800f7d2efb88b397674672ac56f898826cf7c

vendor/github.com/gogo/protobuf/sortkeys/sortkeys.go

@@ -0,0 +1,101 @@
+// Protocol Buffers for Go with Gadgets
+//
+// Copyright (c) 2013, The GoGo Authors. All rights reserved.
+// http://github.com/gogo/protobuf
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+package sortkeys
+
+import (
+	"sort"
+)
+
+func Strings(l []string) {
+	sort.Strings(l)
+}
+
+func Float64s(l []float64) {
+	sort.Float64s(l)
+}
+
+func Float32s(l []float32) {
+	sort.Sort(Float32Slice(l))
+}
+
+func Int64s(l []int64) {
+	sort.Sort(Int64Slice(l))
+}
+
+func Int32s(l []int32) {
+	sort.Sort(Int32Slice(l))
+}
+
+func Uint64s(l []uint64) {
+	sort.Sort(Uint64Slice(l))
+}
+
+func Uint32s(l []uint32) {
+	sort.Sort(Uint32Slice(l))
+}
+
+func Bools(l []bool) {
+	sort.Sort(BoolSlice(l))
+}
+
+type BoolSlice []bool
+
+func (p BoolSlice) Len() int           { return len(p) }
+func (p BoolSlice) Less(i, j int) bool { return p[j] }
+func (p BoolSlice) Swap(i, j int)      { p[i], p[j] = p[j], p[i] }
+
+type Int64Slice []int64
+
+func (p Int64Slice) Len() int           { return len(p) }
+func (p Int64Slice) Less(i, j int) bool { return p[i] < p[j] }
+func (p Int64Slice) Swap(i, j int)      { p[i], p[j] = p[j], p[i] }
+
+type Int32Slice []int32
+
+func (p Int32Slice) Len() int           { return len(p) }
+func (p Int32Slice) Less(i, j int) bool { return p[i] < p[j] }
+func (p Int32Slice) Swap(i, j int)      { p[i], p[j] = p[j], p[i] }
+
+type Uint64Slice []uint64
+
+func (p Uint64Slice) Len() int           { return len(p) }
+func (p Uint64Slice) Less(i, j int) bool { return p[i] < p[j] }
+func (p Uint64Slice) Swap(i, j int)      { p[i], p[j] = p[j], p[i] }
+
+type Uint32Slice []uint32
+
+func (p Uint32Slice) Len() int           { return len(p) }
+func (p Uint32Slice) Less(i, j int) bool { return p[i] < p[j] }
+func (p Uint32Slice) Swap(i, j int)      { p[i], p[j] = p[j], p[i] }
+
+type Float32Slice []float32
+
+func (p Float32Slice) Len() int           { return len(p) }
+func (p Float32Slice) Less(i, j int) bool { return p[i] < p[j] }
+func (p Float32Slice) Swap(i, j int)      { p[i], p[j] = p[j], p[i] }