Move hex cache (#291)

* hexcache is no longer generated at repo root, so remove it from package.json

* Modified templates to depend on local packages

* Adding bluetooth template for offline HEX cache

* Fix wrong package name in dependencies of bluetooth template

* Change package versions to * in templates

libs/templates/bluetoothprj/tsconfig.json

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