Add defaults to pod affinity args

And remove pod affinity parameter from algorithm provider registry

Signed-off-by: Aldo Culquicondor <acondor@google.com>

pkg/scheduler/framework/plugins/noderesources/fit.go

@@ -52,7 +52,7 @@ type Fit struct {
 type FitArgs struct {
 	// IgnoredResources is the list of resources that NodeResources fit filter
 	// should ignore.
-	IgnoredResources []string `json:"IgnoredResources,omitempty"`
+	IgnoredResources []string `json:"ignoredResources,omitempty"`
 }
 
 // preFilterState computed at PreFilter and used at Filter.