Adds new Placeholderkv logo to server logs.

[roshkhatri]

./src/placeholderkv-server    
39910:C 27 Mar 2024 23:07:34.574 # WARNING Memory overcommit must be enabled! Without it, a background save or replication may fail under low memory condition. Being disabled, it can also cause failures without low memory condition, see https://github.com/jemalloc/jemalloc/issues/1328. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
39910:C 27 Mar 2024 23:07:34.574 * oO0OoO0OoO0Oo Placeholderkv is starting oO0OoO0OoO0Oo
39910:C 27 Mar 2024 23:07:34.574 * Placeholderkv version=255.255.255, bits=64, commit=7734971c, modified=0, pid=39910, just started
39910:C 27 Mar 2024 23:07:34.574 # Warning: no config file specified, using the default config. In order to specify a config file use ./src/placeholderkv-server /path/to/redis.conf
39910:M 27 Mar 2024 23:07:34.575 * monotonic clock: POSIX clock_gettime


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                       Placeholderkv 255.255.255 (7734971c/0) 64 bit                        
                                                                              
                         Running in standalone mode
                         Port: 6379
                         PID: 39910
                                                                              
                                                                              
                        (Website will be here soon)                           
                                                                              
                                                                              
                                                                              

39910:M 27 Mar 2024 23:07:34.576 * Server initialized
39910:M 27 Mar 2024 23:07:34.576 * Loading RDB produced by version 255.255.255
39910:M 27 Mar 2024 23:07:34.576 * RDB age 1425 seconds
39910:M 27 Mar 2024 23:07:34.576 * RDB memory usage when created 0.83 Mb
39910:M 27 Mar 2024 23:07:34.576 * Done loading RDB, keys loaded: 0, keys expired: 0.
39910:M 27 Mar 2024 23:07:34.576 * DB loaded from disk: 0.000 seconds
39910:M 27 Mar 2024 23:07:34.576 * Ready to accept connections tcp
^C39910:signal-handler (1711580863) Received SIGINT scheduling shutdown...
39910:M 27 Mar 2024 23:07:43.696 * User requested shutdown...
39910:M 27 Mar 2024 23:07:43.696 * Saving the final RDB snapshot before exiting.
39910:M 27 Mar 2024 23:07:43.700 * DB saved on disk
39910:M 27 Mar 2024 23:07:43.700 # Placeholderkv is now ready to exit, bye bye...