Add proposer for awardings docs

api/apib/data_structures/_app-user.apib

@@ -0,0 +1,8 @@
+# Proposer (object)
+Representation of an app user who proposed an awarding or a promotion
+
+## Properties
+
++ _id: `593d5e3f72d35225222bcaba` (string, required) - unique id of the app user
++ username: `hardiready` (string, required) - username of the app user
++ squad: `591470249e9fae286e308e41` (string, required) - squad id associated with the app user

api/apib/data_structures/_awarding.apib

@@ -7,6 +7,7 @@ Awarding associating a decoration to a user
 + date: `2017-05-17T19:44:24.926Z` (string, required) - date when the awarding was requested
 + decorationId (Decoration, required) - populated decoration object that is given with the awarding
 + reason: `war dabei` (string, required) - reason for giving the awarding
++ proposer (Proposer, required) - app user who requested this awarding, null if awarding was given directly
 + timestamp: `2017-05-17T19:44:28.751Z` (string, required) - creation date
 + updatedAt: `"2017-05-17T19:44:28.751Z` (string, required) - version date
 + userId: `5918d2ca574b0b1d820a0b24` (string, required) - the unique id of the user who got this awarding

api/apib/data_structures/index.apib

@@ -1,5 +1,7 @@
 # Data Structures
 
+:[Gists](_app-user.apib)
+
 :[Gists](_army.apib)
 
 :[Gists](_auth.apib)