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/e2e/pod_inspect_test.go

@@ -41,7 +41,7 @@ var _ = Describe("Podman pod inspect", func() {
 	})
 
 	It("podman inspect a pod", func() {
-		_, ec, podid := podmanTest.CreatePod("")
+		_, ec, podid := podmanTest.CreatePod(nil)
 		Expect(ec).To(Equal(0))
 
 		session := podmanTest.RunTopContainerInPod("", podid)