Add preemption in scheduler extender

Add verb and preemption for scheduler extender

Update bazel

Use simple preemption in extender

Use node name instead of v1.Node

Fix support method

Fix preemption dup

Remove uneeded logics

Remove nodeInfo from param to extender

Update bazel for scheduler types

Mock extender cache with nodeInfo

Add nodeInfo as extender cache

Choose node name or node based on cache flag

Always return meta victims in result

pkg/scheduler/api/validation/validation_test.go

@@ -61,6 +61,10 @@ func TestValidatePolicy(t *testing.T) {
 			policy:   api.Policy{ExtenderConfigs: []api.ExtenderConfig{{URLPrefix: "http://127.0.0.1:8081/extender", FilterVerb: "filter"}}},
 			expected: nil,
 		},
+		{
+			policy:   api.Policy{ExtenderConfigs: []api.ExtenderConfig{{URLPrefix: "http://127.0.0.1:8081/extender", PreemptVerb: "preempt"}}},
+			expected: nil,
+		},
 		{
 			policy: api.Policy{
 				ExtenderConfigs: []api.ExtenderConfig{