Error and Audit logger webhooks (#1855)

Similar to MinIO now it's possible to configure webhooks to log all
triggered errors and incomming requests via env variables:

```
CONSOLE_LOGGER_WEBHOOK_ENABLE_<ID>
CONSOLE_LOGGER_WEBHOOK_ENDPOINT_<ID>
CONSOLE_LOGGER_WEBHOOK_AUTH_TOKEN_<ID>
CONSOLE_LOGGER_WEBHOOK_CLIENT_CERT_<ID>
CONSOLE_LOGGER_WEBHOOK_CLIENT_KEY_<ID>
CONSOLE_LOGGER_WEBHOOK_QUEUE_SIZE_<ID>

CONSOLE_AUDIT_WEBHOOK_ENABLE_<ID>
CONSOLE_AUDIT_WEBHOOK_ENDPOINT_<ID>
CONSOLE_AUDIT_WEBHOOK_AUTH_TOKEN_<ID>
CONSOLE_AUDIT_WEBHOOK_CLIENT_CERT_<ID>
CONSOLE_AUDIT_WEBHOOK_QUEUE_SIZE_<ID>
```

Signed-off-by: Lenin Alevski <alevsk.8772@gmail.com>

pkg/logger/color/color.go

@@ -0,0 +1,60 @@
+// This file is part of MinIO Console Server
+// Copyright (c) 2022 MinIO, Inc.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package color
+
+import (
+	"fmt"
+
+	"github.com/fatih/color"
+)
+
+// global colors.
+var (
+	// Check if we stderr, stdout are dumb terminals, we do not apply
+	// ansi coloring on dumb terminals.
+	IsTerminal = func() bool {
+		return !color.NoColor
+	}
+
+	Bold = func() func(a ...interface{}) string {
+		if IsTerminal() {
+			return color.New(color.Bold).SprintFunc()
+		}
+		return fmt.Sprint
+	}()
+
+	FgRed = func() func(a ...interface{}) string {
+		if IsTerminal() {
+			return color.New(color.FgRed).SprintFunc()
+		}
+		return fmt.Sprint
+	}()
+
+	BgRed = func() func(format string, a ...interface{}) string {
+		if IsTerminal() {
+			return color.New(color.BgRed).SprintfFunc()
+		}
+		return fmt.Sprintf
+	}()
+
+	FgWhite = func() func(format string, a ...interface{}) string {
+		if IsTerminal() {
+			return color.New(color.FgWhite).SprintfFunc()
+		}
+		return fmt.Sprintf
+	}()
+)