JCLOUDS-256: Add missing API to list environment recipes

* core/src/main/java/org/jclouds/chef/ChefApi.java:
   Add /environments/{environment}/recipes.

* core/src/test/java/org/jclouds/chef/ChefApiExpectTest.java:
   Expect test for listEnvironmentRecipes.

* core/src/main/java/org/jclouds/chef/test/TransientChefApi.java
   Add skeleton implementation to make compiler happy.

* core/src/test/resources/environment_recipes.json:
   Expect test data.
Merge branch 'env_list_recipe' of github.com:noorul/jclouds-chef into env_list_recipe

Conflicts:
	core/src/test/java/org/jclouds/chef/ChefApiExpectTest.java