feat: add graphql binding

Signed-off-by: Jeremy Letang <me@jeremyletang.com>

Author: jeremyletang

datanode/gateway/graphql/generated.go

@@ -827,3 +827,5 @@ models:
     model: code.vegaprotocol.io/vega/protos/data-node/api/v2.AMMEdge
   AMMConnection:
     model: code.vegaprotocol.io/vega/protos/data-node/api/v2.AMMConnection
+  RiskFactorOverride:
+    model: code.vegaprotocol.io/vega/protos/vega.RiskFactorOverride

datanode/gateway/graphql/gqlgen.yml

@@ -2079,6 +2079,17 @@ type LogNormalRiskModel {
   tau: Float!
   "Parameters for the log normal risk model"
   params: LogNormalModelParams!
+  "An optional override for the risk factor calculated by the risk model."
+  riskFactorOverride: RiskFactorOverride
+}
+
+
+"Risk factor override to control stable leverage"
+type RiskFactorOverride {
+  "Short Risk factor value"
+  short: String!
+  "Long Risk factor value"
+  long: String!
 }
 
 "A type of simple/dummy risk model where you can specify the risk factor long and short in params"