Updated the YAML parsing method (#3694)

Synchronized the process of loading and parsing YAML databases.
Provides more robust parse warnings/errors.
Added Header checks to validate database versions.
Adjusted root keys to a standard name of Body.
Adjusted inter-server storages, achievements, and attendance to follow the new format.

Fixes #3483

Thanks to @Lemongrass3110!

Author: aleos89

conf/import-tmpl/inter_server.yml

@@ -10,7 +10,11 @@
 #	  Table: "<storage_table>"  // (string) Name of table where storage is saved. The table stucture is the same as the default storage table.
 #	  Max: <max_amount>         // (int) *optional* Maximum number of items in storage. MAX_STORAGE will be used if no value is defined.
 ###############################################################################################################################################
-#Storages:
+Header:
+  Type: INTER_SERVER_DB
+  Version: 1
+
+#Body:
 #   - ID: 1
 #     Name: "VIP Storage"
 #     Table: "vip_storage"

conf/inter_server.yml

@@ -28,7 +28,15 @@
 #	  Table: "<storage_table>"  // (string) Name of table where storage is saved. The table stucture is the same as the default storage table.
 #	  Max: <max_amount>         // (int) *optional* Maximum number of items in storage. MAX_STORAGE will be used if no value is defined.
 
-Storages:
-    - ID: 0
-      Name: "Storage"
-      Table: "storage"
+Header:
+  Type: INTER_SERVER_DB
+  Version: 1
+
+Body:
+  - ID: 0
+    Name: "Storage"
+    Table: "storage"
+
+Footer:
+  Imports:
+    - Path: conf/import/inter_server.yml

db/achievement_db.yml

@@ -0,0 +1,90 @@
+# This file is a part of rAthena.
+#   Copyright(C) 2017 rAthena Development Team
+#   https://rathena.org - https://github.com/rathena
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+###########################################################################
+# Renewal Achievement Database
+###########################################################################
+#
+# Achievement Settings
+#
+###########################################################################
+# ID - Unique achievement ID.
+###########################################################################
+# Group - Achievement group type. Each achievement type calls a specific
+# objective check.
+# Valid groups:
+#  AG_ADD_FRIEND
+#  AG_ADVENTURE
+#  AG_BABY
+#  AG_BATTLE
+#  AG_CHATTING
+#  AG_CHATTING_COUNT
+#  AG_CHATTING_CREATE
+#  AG_CHATTING_DYING
+#  AG_EAT
+#  AG_GET_ITEM
+#  AG_GET_ZENY
+#  AG_GOAL_ACHIEVE
+#  AG_GOAL_LEVEL
+#  AG_GOAL_STATUS
+#  AG_HEAR
+#  AG_JOB_CHANGE
+#  AG_MARRY
+#  AG_PARTY
+#  AG_ENCHANT_FAIL
+#  AG_ENCHANT_SUCCESS
+#  AG_SEE
+#  AG_SPEND_ZENY
+#  AG_TAMING
+###########################################################################
+# Name - Achievement name. Used when sending rewards through RODEX.
+###########################################################################
+# Target - A list of monster ID and count values that the achievement
+# requires. The target count can also be used for achievements that keep
+# a counter while not being related to monster kills.
+# Capped at MAX_ACHIEVEMENT_OBJECTIVES.
+###########################################################################
+# Condition - A conditional statement that must be met for the achievement
+# to be considered complete.
+###########################################################################
+# Map - A map name that is used for the AG_CHATTING type which increments
+# the counter based on the player's map.
+###########################################################################
+# Dependent: - A list of achievement IDs that need to be completed before
+# this achievement is considered complete.
+###########################################################################
+# Reward - A list of rewards that are given on completion. All fields are
+# optional.
+#   ItemID: Item ID
+#   Amount:  Amount of Item ID (default 1)
+#   Script: Bonus Script
+#   TitleID: Title ID
+###########################################################################
+# Score - Achievement points that are given on completion.
+###########################################################################
+
+Header:
+  Type: ACHIEVEMENT_DB
+  Version: 1
+
+Footer:
+  Imports:
+  - Path: db/pre-re/achievement_db.yml
+    Mode: Prerenewal
+  - Path: db/re/achievement_db.yml
+    Mode: Renewal
+  - Path: db/import/achievement_db.yml

db/attendance.yml

@@ -0,0 +1,11 @@
+Header:
+  Type: ATTENDANCE_DB
+  Version: 1
+  
+Footer:
+  Imports:
+  - Path: db/pre-re/attendance.yml
+    Mode: Prerenewal
+  - Path: db/re/attendance.yml
+    Mode: Renewal
+  - Path: db/import/attendance.yml

db/import-tmpl/achievement_db.yml

@@ -77,4 +77,6 @@
 # Score - Achievement points that are given on completion.
 ###########################################################################
 
-Achievements:
+Header:
+  Type: ACHIEVEMENT_DB
+  Version: 1

db/import-tmpl/attendance.yml

@@ -1,3 +1,3 @@
 Header:
-  Type: ATTENDANCE_CONF
+  Type: ATTENDANCE_DB
   Version: 1