Adds a new option to format books when signed

Also cleans up config stuff a bit and moves config-related tasks to its own class
Moves book loading code to its own class
Adds a default config file to make the config file have comments
Adds missing command info about the formatBook command
Adds information about required permissions to the command info

src/main/resources/config.yml

@@ -0,0 +1,26 @@
+Options:
+  # Whether to use YAML for saved books instead of just storing them as text
+  Save_Books_in_Yaml_Format: true
+  # The maximum number of duplicates of a saved book allowed
+  Max_Number_of_Duplicates: 5
+  # The separator used to separate the book title and the book author 
+  Title-Author_Separator: ","
+  # The separator used to denote a new line in the book lore
+  Lore_line_separator: "~"
+  # A list of books given to new players the first time they join the server
+  Books_for_new_players: [ ]
+  # An optional message displayed to new players the first time they join the server
+  Message_for_new_players: ""
+  # Price settings for book copying
+  Price_to_create_book:
+    # The item type used as currency for copying books. Use "Economy" to use money instead of items
+    Item_type: ""
+    # The quantity of currency required to pay for each book produced
+    Required_quantity: 0
+  # Whether any admin can decrypt any book regardless of the group it was encrypted for
+  Admin_Auto_Decrypt: false
+  # Whether to only allow the author of a book to create copies
+  Author_Only_Copy: false
+  # Whether to automatically format every book when it's signed
+  Format_Book_After_Signing: false
+