VSCode settings improvements in analytics (#645)

analytics/.vscode/.env

@@ -0,0 +1 @@
+PYTHONPATH=analytics

analytics/.vscode/settings.json

@@ -1,18 +1,21 @@
 {  
-  "python.pythonPath": "python",
-  "python.linting.enabled": true,
   "terminal.integrated.shell.windows": "C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\powershell.exe",
-  "editor.tabSize": 4,
   "editor.insertSpaces": true,
   "files.eol": "\n",
   "files.exclude": {
-    "**/__pycache__/": true
-},
-"python.unitTest.unittestArgs": [
-    "-v"
-],
-"python.unitTest.pyTestEnabled": false,
-"python.unitTest.nosetestsEnabled": false,
-"python.unitTest.unittestEnabled": true,
-"python.linting.pylintEnabled": true
+    "**/__pycache__/": true,
+    "dist": true,
+    "build": true
+  },
+  "[python]": {
+    "editor.tabSize": 4,
+  },
+  "python.envFile": "${workspaceFolder}/.vscode/.env",
+  "python.pythonPath": "python",
+  "python.linting.enabled": true,
+  "python.testing.unittestArgs": [ "-v" ],
+  "python.testing.pyTestEnabled": false,
+  "python.testing.nosetestsEnabled": false,
+  "python.testing.unittestEnabled": true,
+  "python.linting.pylintEnabled": true,
 }