Restructure repository as per Standard Go Project Layout

- ref: https://github.com/golang-standards/project-layout

cmd/gontlm-proxy/main.go

@@ -0,0 +1,9 @@
+package main
+
+import (
+	proxy "github.com/bdwyertech/gontlm-proxy/pkg/gontlm-proxy"
+)
+
+func main() {
+	proxy.Run()
+}

cert.go → pkg/gontlm-proxy/cert.go

@@ -1,4 +1,4 @@
-package main
+package ntlm_proxy
 
 import (
 	"crypto/tls"

create_selfsigned.go → pkg/gontlm-proxy/create_selfsigned.go

@@ -1,4 +1,4 @@
-package main
+package ntlm_proxy
 
 import (
 	"crypto/rand"

dialcontext.go → pkg/gontlm-proxy/dialcontext.go

@@ -1,4 +1,4 @@
-package main
+package ntlm_proxy
 
 import (
 	"context"

dialcontext_other.go → pkg/gontlm-proxy/dialcontext_other.go

@@ -1,6 +1,6 @@
 // +build !windows
 
-package main
+package ntlm_proxy
 
 import (
 	"context"

dialcontext_windows.go → pkg/gontlm-proxy/dialcontext_windows.go

@@ -1,6 +1,6 @@
 // +build windows
 
-package main
+package ntlm_proxy
 
 import (
 	"bufio"

gontlm-proxy.go → pkg/gontlm-proxy/gontlm-proxy.go

@@ -1,4 +1,4 @@
-package main
+package ntlm_proxy
 
 import (
 	"github.com/bhendo/concord"
@@ -10,7 +10,7 @@ import (
 	"regexp"
 )
 
-func main() {
+func Run() {
 	proxyServer := getEnv("GONTLM_PROXY", getProxyServer())
 	bind := getEnv("GONTLM_BIND", ":53128")
 	log.Printf("INFO: Forwarding Proxy is: %s\n", proxyServer)

helpers.go → pkg/gontlm-proxy/helpers.go

@@ -1,4 +1,4 @@
-package main
+package ntlm_proxy
 
 import (
 	"os"

helpers_other.go → pkg/gontlm-proxy/helpers_other.go

@@ -1,6 +1,6 @@
 // +build !windows
 
-package main
+package ntlm_proxy
 
 import (
 	"os"

helpers_windows.go → pkg/gontlm-proxy/helpers_windows.go

@@ -1,5 +1,5 @@
 // +build windows
-package main
+package ntlm_proxy
 
 import (
 	"golang.org/x/sys/windows/registry"