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/golang.org/x/net/http/httpguts/httplex.go

@@ -137,11 +137,13 @@ func trimOWS(x string) string {
 // contains token amongst its comma-separated tokens, ASCII
 // case-insensitively.
 func headerValueContainsToken(v string, token string) bool {
-	v = trimOWS(v)
-	if comma := strings.IndexByte(v, ','); comma != -1 {
-		return tokenEqual(trimOWS(v[:comma]), token) || headerValueContainsToken(v[comma+1:], token)
+	for comma := strings.IndexByte(v, ','); comma != -1; comma = strings.IndexByte(v, ',') {
+		if tokenEqual(trimOWS(v[:comma]), token) {
+			return true
+		}
+		v = v[comma+1:]
 	}
-	return tokenEqual(v, token)
+	return tokenEqual(trimOWS(v), token)
 }
 
 // lowerASCII returns the ASCII lowercase version of b.