[Enhancement] Custom flea category blacklist (!244)

Allows modders to blacklist entire categories from ragfair in relation to https://dev.sp-tarkov.com/SPT-AKI/Issues/issues/525

new properties under `RagfairConfig.dynamic.blacklist`
`enableCustomItemCategoryList` - this enables the custom custom category blacklist
`customItemCategoryList` - this is an array to take a list of parent id's

I tested it to confirm its working, will need some further testing.

Co-authored-by: Corey <dirtbikercj@gmail.com>
Reviewed-on: https://dev.sp-tarkov.com/SPT-AKI/Server/pulls/244
Co-authored-by: Cj <cj@noreply.dev.sp-tarkov.com>
Co-committed-by: Cj <cj@noreply.dev.sp-tarkov.com>

project/assets/configs/ragfair.json

@@ -297,7 +297,9 @@
 			"armorPlate": {
 				"maxProtectionLevel": 4,
 				"ignoreSlots": ["right_side_plate", "left_side_plate"]
-			}
+			},
+            "enableCustomItemCategoryList": false,
+            "customItemCategoryList": []
         },
         "unreasonableModPrices": {
             "5448fe124bdc2da5018b4567": {

project/src/helpers/RagfairServerHelper.ts

@@ -90,6 +90,15 @@ export class RagfairServerHelper
             return false;
         }
 
+        // Skip custom category blacklisted items
+        if (
+            blacklistConfig.enableCustomItemCategoryList
+            && this.isItemCategoryOnCustomFleaBlacklist(itemDetails[1]._parent)
+        )
+        {
+            return false;
+        }
+
         // Skip quest items
         if (blacklistConfig.enableQuestList && this.itemHelper.isQuestItem(itemDetails[1]._id))
         {
@@ -123,6 +132,16 @@ export class RagfairServerHelper
         return this.ragfairConfig.dynamic.blacklist.custom.includes(itemTemplateId);
     }
 
+    /**
+     * Is supplied parent id on the ragfair custom item category blacklist
+     * @param parentId Parent Id to check is blacklisted
+     * @returns true if blacklisted
+     */
+    protected isItemCategoryOnCustomFleaBlacklist(itemParentId: string): boolean
+    {
+        return this.ragfairConfig.dynamic.blacklist.customItemCategoryList.includes(itemParentId);
+    }
+
     /**
      * is supplied id a trader
      * @param traderId

project/src/models/spt/config/IRagfairConfig.ts

@@ -150,6 +150,10 @@ export interface Blacklist
     traderItems: boolean;
     /** Maximum level an armor plate can be found in a flea-listed armor item */
     armorPlate: IArmorPlateBlacklistSettings;
+    /** Should specific categories be blacklisted from the flea, true = use blacklist */
+    enableCustomItemCategoryList: boolean;
+    /** Custom category blacklist for parent Ids */
+    customItemCategoryList: string[];
 }
 
 export interface IArmorPlateBlacklistSettings