New route added for 'Control API' for retrieving route info

spec/test/features/control/get/error_notfound.feature

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+Feature: Fail to retrieve a route info in Kapow! server.
+  When trying to get a route info in the server, if it
+  does no exists the server respons with an error.
+
+  Scenario: Try to get info for a non-existing route.
+    A request of retrieving a non-existing route info
+    will trigger a not found error.
+
+    Given I have a just started Kapow! server
+    When I get the info for route with id "xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx"
+    Then I get 404 as response code
+      And I get "Not Found" as response reason phrase

spec/test/features/control/get/success.feature

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+Feature: Retrieve route info in Kapow! server.
+  Users can retrieve route info from the server by
+  specifying its id.
+
+  Scenario: Retrieve route info.
+    Get route info by spscifying its id.
+
+    Given I have a Kapow! server whith the following routes:
+      | method | url_pattern        | entrypoint | command                                          |
+      | GET    | /listRootDir       | /bin/sh -c | ls -la / \| response /body                       |
+      | GET    | /listDir/{dirname} | /bin/sh -c | ls -la /request/params/dirname \| response /body |
+    When I get the first route info
+    Then I get 200 as response code
+      And I get "OK" as response reason phrase
+      And I get the following response body:
+        """
+        {
+          "method": "GET",
+          "url_pattern": "/listRootDir",
+          "entrypoint": "/bin/sh -c",
+          "command": "ls -la / | response /body",
+          "index": 0,
+          "id": ANY
+        }
+        """