Allow logging targets to be configured to receive minio (#8347)

specific errors, `application` errors or `all` by default.

console logging on server by default lists all logs -
enhance admin console API to accept `type` as query parameter to
subscribe to application/minio logs.

cmd/logger/target/console/console.go

@@ -32,7 +32,7 @@ import (
 type Target struct{}
 
 // Send log message 'e' to console
-func (c *Target) Send(e interface{}) error {
+func (c *Target) Send(e interface{}, logKind string) error {
 	entry, ok := e.(log.Entry)
 	if !ok {
 		return fmt.Errorf("Uexpected log entry structure %#v", e)