Added FirebirdSQL DDL for db logger

lib/loggerpro/samples/150_DB_appender_firedac/firebird_ddl.sql

@@ -0,0 +1,37 @@
+SET term ^;
+
+EXECUTE BLOCK
+AS
+BEGIN
+  if (exists(select 1 from RDB$PROCEDURES where upper(rdb$procedure_name) = 'SP_LOGGERPRO_WRITER')) THEN
+  begin
+    execute statement 'drop procedure SP_LOGGERPRO_WRITER;';
+  END
+END^
+
+RECREATE table loggerpro_logs (
+    id int generated by default as identity,
+    log_type integer,
+    log_tag varchar(20),
+    log_message varchar(1024),
+    log_timestamp timestamp,
+    log_thread_id integer    
+)^
+
+
+CREATE procedure sp_loggerpro_writer(
+    p_log_type int,
+    p_log_tag varchar(20),
+    p_log_message varchar(1024),
+    p_log_timestamp timestamp,
+    p_log_thread_id integer
+)
+as
+begin
+  INSERT INTO 
+  	loggerpro_logs(log_type, log_tag, log_message, log_timestamp, log_thread_id)
+  values 
+    (:p_log_type, :p_log_tag, :p_log_message, :p_log_timestamp, :p_log_thread_id);
+END^
+
+SET term ;^