openapi: add cashout parameters (#1466)

openapi/Swarm.yaml

 openapi: 3.0.3
 
 info:
-  version: 0.5.1
+  version: 0.5.3
   title: Swarm API
   description: "A list of the currently provided Interfaces to interact with the swarm, implementing file operations and sending messages"
 

openapi/SwarmCommon.yaml

 openapi: 3.0.3
 info:
-  version: 0.5.1
+  version: 0.5.3
   title: Common Data Types
   description: |
     \*****bzzz*****
@@ -153,6 +153,14 @@ components:
     FileName:
       type: string
 
+    GasLimit:
+      type: integer
+      minimum: 0
+      maximum: 18446744073709551615
+
+    GasPrice:
+      type: integer
+
     Hash:
       type: object
       properties:
@@ -414,6 +422,22 @@ components:
 
   parameters:
 
+    GasPriceParameter:
+      in: header
+      name: gas-price
+      schema:
+        $ref: "SwarmCommon.yaml#/components/schemas/GasPrice"
+      required: false
+      description: "Gas price for transaction"
+
+    GasLimitParameter:
+      in: header
+      name: gas-limit
+      schema:
+        $ref: "SwarmCommon.yaml#/components/schemas/GasLimit"
+      required: false
+      description: "Gas limit for transaction"
+
     SwarmRecoveryTargetsParameter:
       in: query
       name: targets

openapi/SwarmDebug.yaml

 openapi: 3.0.3
 info:
-  version: 0.5.1
+  version: 0.5.3
   title: Bee Debug API
   description: "A list of the currently provided debug interfaces to interact with the bee node"
 
@@ -477,6 +477,8 @@ paths:
             $ref: "SwarmCommon.yaml#/components/schemas/SwarmAddress"
           required: true
           description: Swarm address of peer
+        - $ref: "SwarmCommon.yaml#/components/parameters/GasPriceParameter"
+        - $ref: "SwarmCommon.yaml#/components/parameters/GasLimitParameter"
       tags:
         - Chequebook
       responses: