use webpack for packaging

WIP

Following the instruction in https://aka.ms/vscode-bundle-extension.

I couldn't turn on the 'production' mode yet in packaging due to
an issue with the Go Debug Adapter host program. Will keep investigating.

Updates golang/vscode-go#53

Change-Id: I3466188557038772966a351f9cd41754d8b5ffe4

.gitignore

@@ -1,4 +1,6 @@
 out
 node_modules
+dist
 .vscode-test
-.DS_Store
+.DS_Store
+**.vsix

.vscode/launch.json

@@ -14,24 +14,24 @@
 			"stopOnEntry": false,
 			"sourceMaps": true,
 			"outFiles": [
-				"${workspaceFolder}/out/**/*.js"
+				"${workspaceFolder}/dist/**/*.js"
 			],
-			"preLaunchTask": "npm: watch"
+			"preLaunchTask": "npm: webpack"
 		},
 		{
 			"name": "Launch as server",
 			"type": "node",
 			"protocol": "inspector",
 			"request": "launch",
-			"program": "${workspaceFolder}/out/src/debugAdapter/goDebug.js",
+			"program": "${workspaceFolder}/dist/bin/goDebug.js",
 			"args": [
 				"--server=4711"
 			],
 			"sourceMaps": true,
 			"outFiles": [
-				"${workspaceFolder}/out/**/*.js"
+				"${workspaceFolder}/dist/**/*.js"
 			],
-			"preLaunchTask": "npm"
+			"preLaunchTask": "npm: webpack"
 		},
 		{
 			"name": "Launch Extension Tests",

.vscodeignore

@@ -1,12 +1,20 @@
-src/**/*
-typings/**/*
-.vscode/**/*
-tsconfig.json
+.github/**
 .gitignore
-node_modules/fs-extra
-test/
+.prettierrc.json
+.vscode/**
+.vscode-test/**
+*.md.nightly
 **/*.map
 **/tslint.json
-build/**/*
-docs/
-*.md.nightly
+build/**
+docs/**
+node_modules/**
+out/**
+src/**
+test/**
+tsconfig.json
+typings/**/*
+webpack.config.js
+!*.md
+**/*.md
+**/goIcon.png