Report StatusConflict on Pod opt partial failures

- When one or more containers in the Pod reports an error on an operation
report StatusConflict and report the error(s)

- jsoniter type encoding used to marshal error as string using error.Error()

- Update test framework to allow setting any flag when creating pods

- Fix test_resize() result check

Fixes #8865

Signed-off-by: Jhon Honce <jhonce@redhat.com>

test/utils/utils.go

@@ -467,11 +467,14 @@ func Containerized() bool {
 	return false
 }
 
+func init() {
+	rand.Seed(GinkgoRandomSeed())
+}
+
 var randomLetters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
 
 // RandomString returns a string of given length composed of random characters
 func RandomString(n int) string {
-	rand.Seed(GinkgoRandomSeed())
 
 	b := make([]rune, n)
 	for i := range b {