Implements a mix of #3 and #7

Adds a preset command which can be used to see available presets
Adds preset filters which can be used to specify item sub-categories within a preset
Removes SWORD_SMITH and RANGED_SMITH, as those are replaced by the RANGED and SWORD filters
Adds a list of usable filters for each preset

src/main/resources/plugin.yml

@@ -16,6 +16,10 @@ commands:
     permission: blacksmith.admin
     usage: /<command> <option/reload> [new value]
     description: Used for configuring default blacksmith settings, or global settings
+  preset:
+    permission: blacksmith.preset
+    usage: /<command> <preset>[:filter]
+    description: Used to display which materials are part of a given preset. If a filter, such as diamond is used, the result of applying the filter is shown.
 permissions:
   blacksmith.admin:
     description: Allows overall blacksmith configuration
@@ -23,9 +27,13 @@ permissions:
     children:
       blacksmith.edit: true
       blacksmith.use: true
+      blacksmith.preset: true
   blacksmith.edit:
     description: Allows changing settings for the selected blacksmith NPC
     default: op
   blacksmith.use:
     description: Allows the player to repair items using blacksmiths
-    default: true
+    default: true
+  blacksmith.preset:
+    description: Allows the player to use the /preset command
+    default: op

src/main/resources/strings.yml

@@ -14,4 +14,7 @@ en:
   INPUT_POSITIVE_DOUBLE_REQUIRED: "You specified a value which isn't a positive double!"
   INPUT_POSITIVE_INTEGER_REQUIRED: "You specified a value which isn't a positive integer!"
   PERMISSION_DENIED: "You lack the necessary permission"
-  PLUGIN_RELOADED: "Blacksmith config reloaded!"
+  PLUGIN_RELOADED: "Blacksmith config reloaded!"
+  INVALID_FILTER_FOR_PRESET: "The specified filter is not valid for that preset"
+  INVALID_PRESET_OR_FILTER: "You specified an invalid preset or an invalid filter"
+  PRESET_MATERIALS: "Materials in preset: {materials}"