[Improvement](log) add config to controll compression of fe log & fe audit log (#22865)

fe log is large for a busy doris cluster, if you want to preserve some historical logs, it cost too much disk space.
enable compression is a good way to save space.
and a gzip compressed text file can be viewed without decompression.

fe/fe-common/src/main/java/org/apache/doris/common/Config.java

@@ -58,6 +58,9 @@ public class Config extends ConfigBase {
      *          10h     10 hours
      *          60m     60 mins
      *          120s    120 seconds
+     *
+     * sys_log_enable_compress:
+     *      default is false. if true, will compress fe.log & fe.warn.log by gzip
      */
     @ConfField(description = {"FE 日志文件的存放路径，用于存放 fe.log。",
             "The path of the FE log file, used to store fe.log"})
@@ -93,6 +96,8 @@ public class Config extends ConfigBase {
             "The maximum survival time of the FE log file. After exceeding this time, the log file will be deleted. "
                     + "Supported formats include: 7d, 10h, 60m, 120s"})
     public static String sys_log_delete_age = "7d";
+    @ConfField(description = {"是否压缩 FE 的历史日志", "enable compression for FE log file"})
+    public static boolean sys_log_enable_compress = false;
 
     @ConfField(description = {"FE 审计日志文件的存放路径，用于存放 fe.audit.log。",
             "The path of the FE audit log file, used to store fe.audit.log"})
@@ -118,6 +123,8 @@ public class Config extends ConfigBase {
                     + "After exceeding this time, the log file will be deleted. "
                     + "Supported formats include: 7d, 10h, 60m, 120s"})
     public static String audit_log_delete_age = "30d";
+    @ConfField(description = {"是否压缩 FE 的 Audit 日志", "enable compression for FE audit log file"})
+    public static boolean audit_log_enable_compress = false;
 
     @ConfField(description = {"插件的安装目录", "The installation directory of the plugin"})
     public static String plugin_dir = System.getenv("DORIS_HOME") + "/plugins";