add remotes.json.sample for listing remotes, vehicles and commit references for builds

remotes.json.sample

@@ -0,0 +1,58 @@
+[
+  {
+    "name": "ap-static",
+    "url": "https://github.com/ardupilot/ardupilot.git",
+    "vehicles": [
+      {
+        "name": "Copter",
+        "releases": [
+          {
+            "release_type": "latest",
+            "version_number": "4.6.0",
+            "ap_build_atrifacts_url": "https://firmware.ardupilot.org/Copter/latest",
+            "commit_reference": "refs/heads/master"
+          }
+        ]
+      }
+    ]
+  },
+  {
+    "name": "cool-user-007",
+    "url": "https://github.com/cool-user-007/ardupilot.git",
+    "vehicles": [
+      {
+        "name": "Copter",
+        "releases": [
+          {
+            "release_type": "Custom",
+            "version_number": "Custom",
+            "commit_reference": "refs/tags/Copter-4.5.2"
+          }
+        ]
+      }
+    ]
+  },
+  {
+    "name": "ardupilot",
+    "url": "https://github.com/ardupilot/ardupilot.git",
+    "vehicles": [
+      {
+        "name": "Copter",
+        "releases": [
+          {
+            "release_type": "latest",
+            "version_number": "4.6.0",
+            "ap_build_atrifacts_url": "https://firmware.ardupilot.org/Copter/latest",
+            "commit_reference": "202cc6ae9d326a172be5ec1120d79595a6ddae36"
+          },
+          {
+            "release_type": "stable",
+            "version_number": "4.3.0",
+            "ap_build_atrifacts_url": "https://firmware.ardupilot.org/Copter/stable-4.3.0",
+            "commit_reference": "93448b71380c417644c9082b7b23e80fb982b626"
+          }
+        ]
+      }
+    ]
+  }
+]