Add interface for Inputfields that accept page selector

wire/core/Inputfield.php

@@ -481,7 +481,8 @@ abstract class Inputfield extends WireData implements Module {
 			if(strlen($value)) return $value;
 			if($this->skipLabel & self::skipLabelBlank) return '';
 			return $this->attributes['name']; 
-		}
+		} 
+		if($key === 'description' || $key === 'notes') return parent::get($key);
 		if($key === 'name' || $key === 'value' || $key === 'id') return $this->getAttribute($key);
 		if($key === 'attributes') return $this->attributes; 
 		if($key === 'parent') return $this->parent; 

wire/core/Interfaces.php

@@ -575,6 +575,23 @@ interface InputfieldSupportsArrayValue {
 	public function setArrayValue(array $value);
 }
 
+/**
+ * Inputfield that supports a Page selector for selectable options
+ *
+ * @since 3.0.176
+ *
+ */
+interface InputfieldSupportsPageSelector {
+	/**
+	 * Set page selector or test if feature is disabledd
+	 * 
+	 * @param string $selector Selector string or blank string when testing if feature is disabled
+	 * @return bool Return boolean false if feature disabled, otherwise boolean true
+	 * 
+	 */
+	public function setPageSelector($selector);
+}
+
 /**
  * Inputfield that has a text value by default
  *