Project templates (#295)

Moved default projects from pxtarget.json to libs/templates/

libs/templates/tsprj/main.ts

@@ -0,0 +1,7 @@
+basic.showLeds(`
+    . . . . .
+    . # . # .
+    . . . . .
+    # . . . #
+    . # # # .
+    `);

libs/templates/tsprj/pxt.json

@@ -0,0 +1,12 @@
+{
+    "name": "{0} bit",
+    "dependencies": {
+        "core": "*",
+        "radio": "*"
+    },
+    "description": "",
+    "files": [
+        "main.ts",
+        "README.md"
+    ]
+}

libs/templates/tsprj/tsconfig.json

@@ -0,0 +1,8 @@
+{
+    "compilerOptions": {
+        "target": "es5",
+        "noImplicitAny": true,
+        "outDir": "built",
+        "rootDir": "."
+    }
+}