Version 0.0.2

• Lower min. java version to 8.
• Fix 'phantom inventory' being opened when exiting out of an anvil menu.
  • Closes #6
• Use a CompletableFuture for the menu scheduler instead of the Bukkit scheduler.
• Initial resident management menu for nations
• Added a nation rank menu
• fix: Use the correct perm node for bank history
• Use the same code for town & nation toggle creation.
• Added a plot claim button to the plot menu.
• Added balance line to town and resident info items.
• Added button for withdrawing/depositing from/to nation or town banks.
• Added plot permission override support.
• Added a plot toggle menu.
• fix: User input text box is now empty by default
• Added town and nation bank menus that shows current bank balance and last transaction time
• Moved transaction history & deposit/withdraw buttons to the bank menus