added project structure for spring boot java language server

vscode-extensions/vscode-boot-java/lib/.gitignore

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+*.js

vscode-extensions/vscode-boot-java/lib/Main.ts

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+'use strict';
+// The module 'vscode' contains the VS Code extensibility API
+// Import the module and reference it with the alias vscode in your code below
+
+import * as VSCode from 'vscode';
+import * as Path from 'path';
+import * as FS from 'fs';
+import * as Net from 'net';
+import * as ChildProcess from 'child_process';
+import {LanguageClient, LanguageClientOptions, SettingMonitor, ServerOptions, StreamInfo} from 'vscode-languageclient';
+import {TextDocument} from 'vscode';
+
+import * as commons from 'commons-vscode';
+
+/** Called when extension is activated */
+export function activate(context: VSCode.ExtensionContext) {
+    let options : commons.ActivatorOptions = {
+        DEBUG: true,
+        extensionId: 'vscode-boot-java',
+        fatJarFile: 'target/vscode-boot-java-0.0.1-SNAPSHOT.jar',
+        clientOptions: {
+            // HACK!!! documentSelector only takes string|string[] where string is language id, but DocumentFilter object is passed instead
+            // Reasons:
+            // 1. documentSelector is just passed over to functions like #registerHoverProvider(documentSelector, ...) that take documentSelector
+            // parameter in string | DocumentFilter | string[] | DocumentFilter[] format
+            // 2. Combination of non string|string[] documentSelector parameter and synchronize.textDocumentFilter function makes doc synchronization
+            // events pass on to Language Server only for documents for which function passed via textDocumentFilter property return true
+
+            // TODO: Remove <any> cast ones https://github.com/Microsoft/vscode-languageserver-node/issues/9 is resolved
+            documentSelector: ['java'],
+            synchronize: {
+                configurationSection: 'vscode-boot-java'
+            }
+        }
+    };
+    commons.activate(options, context);
+}