add EteSync a open source sync solution (#139)

* init with png and config

* formatting and update description

* add start end description

* update description

* update description

public/v2/apps/etesync.json

@@ -0,0 +1,54 @@
+{
+    "captainVersion": "2",
+    "documentation": "Read the documentation @ https://github.com/GRBurst/docker-etesync-server",
+    "displayName": "ETESync",
+    "description": "ETESync is a self hosted syning solution, it is secure, end-to-end encrypted, and privacy respecting sync for your contacts, calendars and tasks.",
+    "dockerCompose": {
+        "version": "3.7",
+        "services": {
+            "$$cap_appname": {
+                "image": "grburst/etesync:$$cap_version",
+                "containerHttpPort": "3735",
+                "volumes": [
+                    "$$cap_appname-data:/data"
+                ],
+                "restart": "always",
+                "environment": {
+                    "SUPER_USER": "$$cap_SUPER_USER",
+                    "SUPER_EMAIL": "$$cap_SUPER_EMAIL",
+                    "SUPER_PASS": "$$cap_SUPER_PASS"
+                }
+            }
+        }
+    },
+    "instructions": {
+        "start": "ETESync is a open source and privacy focuse sync service",
+        "end": "Deployment of ETEsync is finished. You might see 502 errors for the next 2 minutes. Goto <YOUR-APP-URL>/admin to manage your users for ETEsync."
+    },
+    "variables": [
+        {
+            "id": "$$cap_version",
+            "label": "version tag",
+            "description": "Checkout their docker page for the valid tags @ https://hub.docker.com/r/grburst/etesync",
+            "defaultValue": "alpine"
+        },
+        {
+            "id": "$$cap_SUPER_USER",
+            "label": "user name",
+             "description": "etesync super user name",
+            "defaultValue": "root"
+        },
+        {
+            "id": "$$cap_SUPER_EMAIL",
+            "label": "email",
+            "description": "etesync super user email",
+            "defaultValue": "x@x.com"
+        },
+        {
+            "id": "$$cap_SUPER_PASS",
+            "label": "password",
+            "description": "etesync super user password",
+            "validRegex": "/^([a-zA-Z0-9])+$/"
+        }
+    ]
+}