core: initial commit for logger (#228)

* Replace "log.*" with logger.
* Add simple logger to log with log package.
* Add debug logs to all calls to these interfaces:
   - core.Application
   - core.Governance
   - core.Network
* Add Stringer to these types:
   - types.DKGComplaint
   - types.AgreementResult
   - types.DKGMasterPublicKey
   - types.DKGFinalize

1 files changed, 7 insertions, 1 deletions

diff --git a/simulation/node.go b/simulation/node.go
index 0a59994..5919b3e 100644
--- a/simulation/node.go
+++ b/simulation/node.go
@@ -100,7 +100,13 @@ func (n *node) run(serverEndpoint interface{}, dMoment time.Time) {
 		}
 	}
 	n.consensus = core.NewConsensus(
-		dMoment, n.app, n.gov, n.db, n.netModule, n.prvKey)
+		dMoment,
+		n.app,
+		n.gov,
+		n.db,
+		n.netModule,
+		n.prvKey,
+		&common.SimpleLogger{})
 	go n.consensus.Run(&types.Block{})
 
 	// Blocks forever.