Add write_raw method to vault module

This method allow to write complex data to the vault

salt/modules/vault.py

@@ -178,6 +178,28 @@ def write_secret(path, **kwargs):
         log.error('Failed to write secret! %s: %s', type(err).__name__, err)
         return False
 
+def write_raw(path, raw):
+    '''
+    Set raw data at the path in vault. The vault policy used must allow this.
+
+    CLI Example:
+
+    .. code-block:: bash
+
+            salt '*' vault.write_secret "secret/my/secret" '{"user":"foo","password": "bar"}'
+    '''
+    log.debug('Writing vault secrets for %s at %s', __grains__['id'], path)
+    try:
+        url = 'v1/{0}'.format(path)
+        response = __utils__['vault.make_request']('POST', url, json=raw)
+        if response.status_code == 200:
+            return response.json()['data']
+        elif response.status_code != 204:
+            response.raise_for_status()
+        return True
+    except Exception as err:
+        log.error('Failed to write secret! %s: %s', type(err).__name__, err)
+        return False
 
 def delete_secret(path):
     '''