add prettier config + vscode formatter

.prettierrc

@@ -0,0 +1,7 @@
+{
+  "semi": true,
+  "tabWidth": 2,
+  "printWidth": 120,
+  "singleQuote": false,
+  "trailingComma": "es5"
+}

.vscode/extensions.json

@@ -0,0 +1,3 @@
+{
+  "recommendations": ["eg2.tslint", "EditorConfig.EditorConfig", "esbenp.prettier-vscode"]
+}

.vscode/settings.json

@@ -1,5 +1,6 @@
 {
   "editor.renderWhitespace": "boundary",
+  "editor.formatOnSave": true,
   "files.encoding": "utf8",
   "files.trimTrailingWhitespace": true,
   "files.insertFinalNewline": true,

package.json

@@ -28,6 +28,7 @@
   "devDependencies": {
     "@types/lodash": "^3.10.1",
     "@types/screeps": "^2.4.0",
+    "prettier": "^1.14.0",
     "rollup": "^0.57.1",
     "rollup-plugin-clear": "^2.0.7",
     "rollup-plugin-commonjs": "^9.1.4",
@@ -35,6 +36,8 @@
     "rollup-plugin-screeps": "^0.1.2",
     "rollup-plugin-typescript2": "^0.16.1",
     "tslint": "^5.9.1",
+    "tslint-config-prettier": "^1.14.0",
+    "tslint-plugin-prettier": "^1.3.0",
     "typescript": "^2.9.2"
   },
   "dependencies": {

tslint.json

@@ -1,6 +1,8 @@
 {
+  "rulesDirectory": "tslint-plugin-prettier",
   "extends" : [
-    "tslint:recommended"
+    "tslint:recommended",
+    "tslint-config-prettier"
   ],
   "rules": {
     "forin": false,