monitor velero logs and fix E2E issues

1. Capture Velero pod log and K8S cluster event;
2. Fix wrong path of storageclass yaml file issue caused by pert test;
3. Fix change storageclass test issue that no sc named 'default' in EKS cluster;
4. Support AWS credential as config format;
5. Support more E2E script input parameters like standy cluster plugins and provider.

Signed-off-by: danfengl <danfengl@vmware.com>

test/e2e/basic/api-group/enable_api_group_extentions.go

@@ -69,7 +69,7 @@ func APIExtensionsVersionsTest() {
 	AfterEach(func() {
 		if !veleroCfg.Debug {
 			By("Clean backups after test", func() {
-				DeleteBackups(context.Background(), *veleroCfg.DefaultClient)
+				DeleteAllBackups(context.Background(), *veleroCfg.DefaultClient)
 			})
 			if veleroCfg.InstallVelero {
 				By("Uninstall Velero and delete CRD ", func() {

test/e2e/basic/api-group/enable_api_group_versions.go

@@ -94,7 +94,7 @@ func APIGropuVersionsTest() {
 			}
 
 			By("Clean backups after test", func() {
-				DeleteBackups(context.Background(), *veleroCfg.ClientToInstallVelero)
+				DeleteAllBackups(context.Background(), *veleroCfg.ClientToInstallVelero)
 			})
 			if veleroCfg.InstallVelero {
 				By("Uninstall Velero in api group version case", func() {