Make Rat King more Neutral (Simple-Station#96)

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# Description

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Because community vote requested to keep Rat Kings as they are, this PR
should give neutral and friendly Rat Kings more RP options.

- Gives Rat King a PDA and headset slot
- Lets Rat King drag objects
- Changes Rules and Description to clarify that you are not required to
act as an antag.

Addresses Simple-Station#93 

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# TODO

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# Changelog

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:cl: zelezniciar
- tweak: Rat Kings now have PDA and Headset slots, and can drag objects.

Resources/Locale/en-US/ghost/roles/ghost-role-component.ftl

@@ -66,7 +66,7 @@ ghost-role-information-kobold-description = Be the little gremlin you are, yell
 
 ghost-role-information-rat-king-name = Rat King
 ghost-role-information-rat-king-description = You are the Rat King, scavenge food in order to produce rat minions to do your bidding.
-ghost-role-information-rat-king-rules = You are an antagonist, scavenge, attack, and grow your hoard!
+ghost-role-information-rat-king-rules =  You have no allegiance, so scavenge, attack, and grow your hoard or learn to live in peace with the crew. 
 
 ghost-role-information-rat-servant-name = Rat Servant
 ghost-role-information-rat-servant-description = You are a Rat Servant. You must follow your king's orders.

Resources/Prototypes/Entities/Mobs/NPCs/regalrat.yml

@@ -1,8 +1,8 @@
 - type: entity
   name: Rat King
   id: MobRatKing
-  parent: [ SimpleMobBase, MobCombat ]
-  description: He's da rat. He make da roolz.
+  parent: [ SimpleMobBase, MobCombat ] 
+  description: He's da rat king. He make da roolz.
   components:
   - type: CombatMode
   - type: MovementSpeedModifier
@@ -42,6 +42,19 @@
         - SmallMobMask
         layer:
         - SmallMobLayer
+  - type: Hands #Grimbly - ratking ID and headset
+  - type: Inventory
+    speciesId: ratking
+    templateId: ratking
+  - type: InventorySlots
+  - type: Strippable
+  - type: UserInterface
+    interfaces:
+    - key: enum.StrippingUiKey.Key
+      type: StrippableBoundUserInterface
+  - type: Puller
+    needsHands: false
+  - type: IdExaminable
   - type: MobState
   - type: MobThresholds
     thresholds:

Resources/Prototypes/InventoryTemplates/rat_king_inventory_template.yml

@@ -0,0 +1,18 @@
+- type: inventoryTemplate
+  id: ratking
+  slots:
+  - name: ears
+    slotTexture: ears
+    slotFlags: EARS
+    stripTime: 3
+    uiWindowPos: 0,2
+    strippingWindowPos: 1,2
+    displayName: Ears
+  - name: id
+    slotTexture: id
+    slotFlags: IDCARD
+    slotGroup: SecondHotbar
+    stripTime: 6
+    uiWindowPos: 0,1
+    strippingWindowPos: 2,4
+    displayName: ID