Use apiextension v1

- upgrade from apiextension v1beta1 to v1
 - generate yaml manifest for crd intead of applying it at runtime
  - users will have to apply the manifest with kubectl
 - kg and kgctl log an error if the crd is not present
 - now validation should actually work

Signed-off-by: leonnicolas <leonloechner@gmx.de>

vendor/github.com/gobuffalo/flect/pluralize.go

@@ -0,0 +1,59 @@
+package flect
+
+import (
+	"strings"
+	"sync"
+)
+
+var pluralMoot = &sync.RWMutex{}
+
+// Pluralize returns a plural version of the string
+//	user = users
+//	person = people
+//	datum = data
+func Pluralize(s string) string {
+	return New(s).Pluralize().String()
+}
+
+// PluralizeWithSize will pluralize a string taking a number number into account.
+//	PluralizeWithSize("user", 1) = user
+//	PluralizeWithSize("user", 2) = users
+func PluralizeWithSize(s string, i int) string {
+	if i == 1 || i == -1 {
+		return New(s).Singularize().String()
+	}
+	return New(s).Pluralize().String()
+}
+
+// Pluralize returns a plural version of the string
+//	user = users
+//	person = people
+//	datum = data
+func (i Ident) Pluralize() Ident {
+	s := i.LastPart()
+	if len(s) == 0 {
+		return New("")
+	}
+
+	pluralMoot.RLock()
+	defer pluralMoot.RUnlock()
+
+	ls := strings.ToLower(s)
+	if _, ok := pluralToSingle[ls]; ok {
+		return i
+	}
+	if p, ok := singleToPlural[ls]; ok {
+		return i.ReplaceSuffix(s, p)
+	}
+	for _, r := range pluralRules {
+		if strings.HasSuffix(ls, r.suffix) {
+			return i.ReplaceSuffix(s, r.fn(s))
+		}
+	}
+
+	if strings.HasSuffix(ls, "s") {
+		return i
+	}
+
+	return New(i.String() + "s")
+}