htmlcoin altcoin updates (#3601)

* remove old logo

* add new logo

* switch name from Althash to Htmlcoin

* increment version NBXplorer.Client

* fix KeyPath BIP-0044, fix name

https://github.com/BEPAL/slips/blob/master/slip-0044.md

* revert increment version

BTCPayServer.Common/Altcoins/BTCPayNetworkProvider.Althash.cs

@@ -11,7 +11,7 @@ namespace BTCPayServer
             Add(new BTCPayNetwork()
             {
                 CryptoCode = nbxplorerNetwork.CryptoCode,
-                DisplayName = "Althash",
+                DisplayName = "Htmlcoin",
                 BlockExplorerLink = NetworkType == ChainName.Mainnet ? "https://explorer.htmlcoin.com/api/tx/{0}" : "https://explorer.htmlcoin.com/api/tx/{0}",
                 NBXplorerNetwork = nbxplorerNetwork,
                 DefaultRateRules = new[]
@@ -21,7 +21,7 @@ namespace BTCPayServer
                 },
                 CryptoImagePath = "imlegacy/althash.png",
                 DefaultSettings = BTCPayDefaultSettings.GetDefaultSettings(NetworkType),
-                CoinType = NetworkType == ChainName.Mainnet ? new KeyPath("88'") : new KeyPath("1'")
+                CoinType = NetworkType == ChainName.Mainnet ? new KeyPath("172'") : new KeyPath("1'")
             });
         }
     }

BTCPayServer.Rating/Currencies.json

@@ -1274,7 +1274,7 @@
       "crypto":true
    },
    {
-      "name":"Althash",
+      "name":"Htmlcoin",
       "code":"HTML",
       "divisibility":8,
       "symbol":null,