Refactor imports, Add vendor/ as submodule (#5)

refact imports to github.xxx. update go.mod + go.sum

* removed vendor/ folder

* Added vendor/ submodule.

Moved dependencies that need to be vendored into separate repository.
	- https://github.com/spdfg/elektron-vendor
Added vendor/ as a submodule using the below command.
	- git submodule add https://github.com/spdfg/elektron-vendor vendor
If wanting to use vendor, run the following commands after cloning
elektron.
1. git submodule init
2. git submodule update

* added instructions to clone vendor/ submodule.

* updated module to spdfg. Refactored imports

logging/def/clsfnTaskDistOverhead.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 // 

logging/def/consoleLogger.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 // 

logging/def/logType.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 // 

logging/def/logger.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 // 
@@ -30,13 +30,13 @@ type LoggerDriver struct {
 func newLogger() *LoggerDriver {
 	logger := &LoggerDriver{
 		allowedMessageTypes: map[LogMessageType]bool{
-			ERROR:       true,
-			GENERAL:     true,
-			WARNING:     true,
-			SCHED_TRACE: true,
-			SUCCESS:     true,
-			PCP:         true,
-			SPS:         true,
+			ERROR:                   true,
+			GENERAL:                 true,
+			WARNING:                 true,
+			SCHED_TRACE:             true,
+			SUCCESS:                 true,
+			PCP:                     true,
+			SPS:                     true,
 			CLSFN_TASKDIST_OVERHEAD: true,
 			SCHED_WINDOW:            true,
 		},

logging/def/loggerFactory.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 // 
@@ -22,7 +22,7 @@ import (
 	"strings"
 	"time"
 
-	logUtils "gitlab.com/spdf/elektron/logging/utils"
+	logUtils "github.com/spdfg/elektron/logging/utils"
 )
 
 // Names of different loggers

logging/def/loggerObservers.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 // 

logging/def/loggerSubject.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 // 

logging/def/pcpLogger.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 // 

logging/def/schedPolicySwitchLogger.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 // 

logging/def/schedTraceLogger.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 // 

logging/def/schedWindowLogger.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 // 

logging/utils/createLogDir.go

@@ -1,4 +1,4 @@
-// Copyright (C) 2018 spdf
+// Copyright (C) 2018 spdfg
 // 
 // This file is part of Elektron.
 //