Feat: support customizing application revision limit number in policy (#5995)

Signed-off-by: Somefive <yd219913@alibaba-inc.com>

apis/core.oam.dev/v1alpha1/garbagecollect_policy_types.go

@@ -27,6 +27,10 @@ const (
 
 // GarbageCollectPolicySpec defines the spec of configuration drift
 type GarbageCollectPolicySpec struct {
+	// ApplicationRevisionLimit if set, this application will use this number for application revision instead of
+	// the global configuration
+	ApplicationRevisionLimit *int `json:"applicationRevisionLimit,omitempty"`
+
 	// KeepLegacyResource if is set, outdated versioned resourcetracker will not be recycled automatically
 	// outdated resources will be kept until resourcetracker be deleted manually
 	KeepLegacyResource bool `json:"keepLegacyResource,omitempty"`

apis/core.oam.dev/v1alpha1/zz_generated.deepcopy.go

@@ -329,6 +329,11 @@ func (in *GarbageCollectPolicyRule) DeepCopy() *GarbageCollectPolicyRule {
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *GarbageCollectPolicySpec) DeepCopyInto(out *GarbageCollectPolicySpec) {
 	*out = *in
+	if in.ApplicationRevisionLimit != nil {
+		in, out := &in.ApplicationRevisionLimit, &out.ApplicationRevisionLimit
+		*out = new(int)
+		**out = **in
+	}
 	if in.Rules != nil {
 		in, out := &in.Rules, &out.Rules
 		*out = make([]GarbageCollectPolicyRule, len(*in))