MAGETWO-67242: Add @api Annotation in Locale and Escaper framework libraries

Author: buskamuza

lib/internal/Magento/Framework/Escaper.php

@@ -7,6 +7,8 @@
 
 /**
  * Magento escape methods
+ *
+ * @api
  */
 class Escaper
 {

lib/internal/Magento/Framework/Locale/Format.php

@@ -45,7 +45,7 @@ public function __construct(
     }
 
     /**
-     * Returns the first found number from an string
+     * Returns the first found number from a string
      * Parsing depends on given locale (grouping and decimal)
      *
      * Examples for input:
@@ -92,7 +92,7 @@ public function getNumber($value)
     }
 
     /**
-     * Functions returns array with price formatting info
+     * Returns an array with price formatting info
      *
      * @param string $localeCode Locale code.
      * @param string $currencyCode Currency code.

lib/internal/Magento/Framework/Locale/FormatInterface.php

@@ -5,10 +5,13 @@
  */
 namespace Magento\Framework\Locale;
 
+/**
+ * @api
+ */
 interface FormatInterface
 {
     /**
-     * Returns the first found number from an string
+     * Returns the first found number from a string
      * Parsing depends on given locale (grouping and decimal)
      *
      * Examples for input:
@@ -27,7 +30,7 @@ interface FormatInterface
     public function getNumber($value);
 
     /**
-     * Functions returns array with price formatting info for js function
+     * Returns an array with price formatting info for js function
      * formatCurrency in js/varien/js.js
      *
      * @return array

lib/internal/Magento/Framework/Locale/ListsInterface.php

@@ -5,6 +5,9 @@
  */
 namespace Magento\Framework\Locale;
 
+/**
+ * @api
+ */
 interface ListsInterface
 {
     /**