Changelly Support (#267)

* Disable shapeshift and use changelly

* UI to manage changelly payment method

* wip on changelly api

* Add in Vue component for changelly and remove target currency from payment method

* add changelly merhcant id

* Small fixes to get Conversion to load

* wip fixing the component

* fix merge conflict

* fixes to UI

* remove debug, fix fee calc and move changelly to own partials

* Update ChangellyController.cs

* move original vue setup back to checkout

* Update core.js

* Extracting Changelly component to js file

* Proposal for loading spinner

* remove zone

* imrpove changelly ui

* add in changelly config checks

* try new method to calculate amount + remove to currency from list

* abstract changelly lofgic to provider and reduce dependency on js component

* Add UTs for Changelly

* refactor changelly backend

* fix failing UT

* add shitcoin tax

* pr changes

* pr changes

BTCPayServer/Data/StoreData.cs

@@ -17,6 +17,7 @@ using BTCPayServer.JsonConverters;
 using System.ComponentModel.DataAnnotations;
 using BTCPayServer.Services;
 using System.Security.Claims;
+using BTCPayServer.Payments.Changelly;
 using BTCPayServer.Security;
 using BTCPayServer.Rating;
 
@@ -261,11 +262,6 @@ namespace BTCPayServer.Data
         {
             get; set;
         }
-        public bool AllowCoinConversion
-        {
-            get; set;
-        }
-
         public bool RequiresRefundEmail { get; set; }
 
         public string DefaultLang { get; set; }
@@ -307,6 +303,8 @@ namespace BTCPayServer.Data
         public string RateScript { get; set; }
 
         public bool AnyoneCanInvoice { get; set; }
+        
+        public ChangellySettings ChangellySettings { get; set; }
 
 
         string _LightningDescriptionTemplate;