Iss4 - create a way to attach attach items to armor and weapons (#310)

* add basic drag drop window

* add better field

* make effects copy onto actor on attachment

* make items from inventory draggable

* working drop from inventory

* remove duplication issue

* add attachment only flag and logic

* add weapons to attachables

* remove debug logs

* try to make it drier

* remove unecessary try catch

* remove extra configs

* remove superfluous comments

* remove spurious defenses

* make drier

* remove unecessary code

* deduplicate and simplify

* its a desert

* standardize to be more similar to class item code

* fix bug of duplicate effects being created

* fix localization string

* fix bug of item equiping and un equiping

* remove this since were not going to be using attachmentonly

* update attachment tab with comments

* remove attachment only logic in favor of just transfer

* change flags

* change armor and weapon to be attachableItem

* change armor and weapon to be attachableItem

* change weapon to use mixin

* add mixin to armor

* move everything to mixin sheet

* refactor code for review comments

* cleanup and somehow git is ignoring some changes

* see if this picks up the changes now

* Import/Export updates

---------

Co-authored-by: psitacus <walther.johnson@ucalgary.ca>
Co-authored-by: WBHarry <williambjrklund@gmail.com>

templates/sheets/global/tabs/tab-attachments.hbs

@@ -0,0 +1,29 @@
+<section
+    class='tab {{tabs.attachments.cssClass}} {{tabs.attachments.id}}'
+    data-tab='{{tabs.attachments.id}}'
+    data-group='{{tabs.attachments.group}}'
+>
+    <fieldset class="one-column drop-section attachments-section">
+        <legend>{{localize tabs.attachments.label}}</legend>
+        
+        {{#if attachedItems}}
+            <div class="attached-items">
+                {{#each attachedItems as |item|}}
+                    <div class="inventory-item attached-item" data-uuid="{{item.uuid}}">
+                        <img src="{{item.img}}" alt="{{item.name}}" class="item-img">
+                        <div class="item-label">
+                            <div class="item-name">{{item.name}}</div>
+                        </div>
+                        <div class="controls">
+                            <a data-action="removeAttachment" data-uuid="{{item.uuid}}"><i class="fa-solid fa-trash remove-attachment"></i></a>
+                        </div>
+                    </div>
+                {{/each}}
+            </div>
+        {{/if}}
+        
+        <div class="drop-area" data-drop-type="Item" style="width: 100%;">
+            <span>{{localize "DAGGERHEART.EFFECTS.Attachments.attachHint"}}</span>
+        </div>
+    </fieldset>
+</section>