Add Zcash support (#995)

* add zcash fragment with definition

* fix zcash port number

* fix zec db data and add zec lightwalletd fullnode opt

* fix zec lightwalletd zcash.conf error

* remove LWD_URL for main zec fragment

* set zcash docker image to latest

* revert zcash-walletd to 0.0.2

* move zec lwd_url back to zecrocks

* add zcash-fullnode exclusive fragment

* add fragment configs support

* fix compose generator configs

---------

Co-authored-by: macintoshhelper <6757532+macintoshhelper@users.noreply.github.com>

docker-compose-generator/crypto-definitions.json

@@ -94,5 +94,13 @@
     "LNDFragment": null,
     "EclairFragment": null,
     "PhoenixdFragment": null
+  },
+  {
+    "Crypto": "zec",
+    "CryptoFragment": "zcash",
+    "CLightningFragment": null,
+    "LNDFragment": null,
+    "EclairFragment": null,
+    "PhoenixdFragment": null
   }
 ]