Starts adding string translations and cleanup

src/main/resources/config.yml

@@ -1,4 +1,6 @@
 Options:
+  # The language to use. Only "en" is built-in, but custom languages can be added
+  Language: "en"
   # 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

src/main/resources/strings.yml

@@ -0,0 +1,25 @@
+en:
+  PREFIX: "[BwB]"
+  SUCCESS_COPY: "Book copied!"
+  ERROR_PLAYER_ONLY: "This command can only be used by a player!"
+  ERROR_NOT_HOLDING_BOOK_COPY: "You must be holding a written book to copy it!"
+  ERROR_ONLY_ONE_BOOK_COPY: "You cannot copy two books at once!"
+  ERROR_COPY_COUNT_NOT_SPECIFIED: "You must specify the number of copies to be made!"
+  ERROR_COPY_NEGATIVE_AMOUNT: "Number of copies must be larger than 0!"
+  ERROR_COPY_INVALID_AMOUNT: |
+    Book not copied!
+    Number specified was invalid!
+  ERROR_BOOK_COPIED_TOO_FAR: "You cannot copy this book any further. You must have the original or a direct copy."
+  ERROR_INVENTORY_FULL: "You need an available slot in your inventory."
+  NEUTRAL_COMMANDS_HEADER: |
+    &e[] denote optional parameters
+    <> denote required parameters
+    {} denote required permission
+    In some cases, commands with required parameters can be called with no parameters
+    {bookPrice}&eCommands:
+    {commands}
+  NEUTRAL_COMMANDS_BOOK_PRICE_ECO: "\n&c[{price} is required to create a book]"
+  NEUTRAL_COMMANDS_BOOK_PRICE_ITEM: "&c[{quantity} {type} (s) are required to create a book]\n"
+  NEUTRAL_COMMANDS_COMMAND: "\n \n&e{usage}: &a{description}"
+  NEUTRAL_COMMANDS_COMMAND_NO_PERMISSION_REQUIRED: "None"
+  NEUTRAL_COMMANDS_COMMAND_PERMISSION: " &7{{permission}}"