Add btc transmuter (#125)

* Add Btc Transmuter as a btcpayserver-docker plugin

* fix name

* bump

* Revert "bump "

This reverts commit 8817fbdffbe91b5db96a5490a90adeb9a7737862.

* change port for now

* Revert "change port for now"

This reverts commit 49348f013a99cfc6ed3d2ed2ea769ed484ff43cf.

* store env vars for transmuter

* add volumes

* voumes

* fix

* fix

* wip

* wip

* wip

* small fixes

* volume map correctly

* bump

* bump

* bump

* bump

* attempt fix by renaming host service

* bump

* bump

* bump

* bump

* bump and update config

* fix config

* bump + extension dir

* bump and switch to btcpayserver org

* bump

* bump

* remove crypto env spec

* fix formatting

* export var

* fix export

* fix env file

* place vars in string

* bump

* bump

* bump

* bump

* bump

docker-compose-generator/docker-fragments/opt-add-btctransmuter.yml

@@ -0,0 +1,32 @@
+version: "3"
+
+services:
+  btctransmuter:
+    restart: unless-stopped
+    image: btcpayserver/btctransmuter:0.0.19
+    environment:
+      TRANSMUTER_Database: User ID=postgres;Host=postgres;Port=5432;Database=btctransmuter${NBITCOIN_NETWORK:-regtest}
+      TRANSMUTER_DatabaseType: postgres
+      TRANSMUTER_DataProtectionDir: data/keys      
+      TRANSMUTER_ExtensionsDir: data/extensions
+      NBXplorer_Cryptos: ${BTCPAY_CRYPTOS}
+      NBXplorer_Uri: http://nbxplorer:32838/
+      NBXplorer_NetworkType: ${NBITCOIN_NETWORK:-regtest}
+      NBXplorer_UseDefaultCookie: 1
+      LETSENCRYPT_HOST: ${BTCTRANSMUTER_HOST}
+      LETSENCRYPT_EMAIL: ${LETSENCRYPT_EMAIL:-<no value>}
+      VIRTUAL_HOST: ${BTCTRANSMUTER_HOST}
+      VIRTUAL_HOST_NAME: "btctransmuter"
+    expose:
+      - "80"
+    links:
+      - postgres
+      - nbxplorer
+    volumes:
+     - "btctransmuter_datadir:/app/data"
+     - "nbxplorer_datadir:/root/.nbxplorer"
+  btcpayserver:
+    environment:
+      BTCPAY_EXTERNALSERVICES: "BTC Transmuter:${BTCPAY_PROTOCOL:-https}://${BTCTRANSMUTER_HOST};"
+volumes:
+    btctransmuter_datadir: