Fixed generation schematics for some chart types

Author: santam85

projects/ng2-charts/package.json

@@ -1,6 +1,6 @@
 {
   "name": "ng2-charts",
-  "version": "3.0.6",
+  "version": "3.0.7",
   "publishConfig": {
     "registry": "https://registry.npmjs.org/"
   },

projects/ng2-charts/schematics/collection.json

@@ -13,10 +13,9 @@
       "factory": "./ng-add/setup-project",
       "schema": "./ng-add/schema.json"
     },
-
     "bar": {
       "description": "Generate a component with a bar chart.",
-      "factory": "./ng-generate/index",
+      "factory": "./ng-generate/bar/index",
       "schema": "./ng-generate/schema.json"
     },
     "bubble": {

projects/ng2-charts/schematics/ng-generate/bar/index.ts

@@ -2,7 +2,7 @@ import { chain, noop, Rule } from "@angular-devkit/schematics";
 import { buildComponent } from "@angular/cdk/schematics";
 import { addChartsModulesToModule } from "../../utils/project"
 
-export function index(options: any): Rule {
+export default function(options: any): Rule {
   return chain([
     buildComponent(
       {...options},

projects/ng2-charts/schematics/ng-generate/bubble/index.ts

@@ -2,7 +2,7 @@ import { chain, noop, Rule } from "@angular-devkit/schematics";
 import { buildComponent } from "@angular/cdk/schematics";
 import { addChartsModulesToModule } from "../../utils/project"
 
-export function index(options: any): Rule {
+export default function(options: any): Rule {
   return chain([
     buildComponent(
       {...options},

projects/ng2-charts/schematics/ng-generate/doughnut/index.ts

@@ -2,7 +2,7 @@ import { chain, noop, Rule } from "@angular-devkit/schematics";
 import { buildComponent } from "@angular/cdk/schematics";
 import { addChartsModulesToModule } from "../../utils/project"
 
-export function index(options: any): Rule {
+export default function(options: any): Rule {
   return chain([
     buildComponent(
       {...options},

projects/ng2-charts/schematics/ng-generate/pie/index.ts

@@ -2,7 +2,7 @@ import { chain, noop, Rule } from "@angular-devkit/schematics";
 import { buildComponent } from "@angular/cdk/schematics";
 import { addChartsModulesToModule } from "../../utils/project"
 
-export function index(options: any): Rule {
+export default function(options: any): Rule {
   return chain([
     buildComponent(
       {...options},

projects/ng2-charts/schematics/ng-generate/polar-area/index.ts

@@ -2,7 +2,7 @@ import { chain, noop, Rule } from "@angular-devkit/schematics";
 import { buildComponent } from "@angular/cdk/schematics";
 import { addChartsModulesToModule } from "../../utils/project"
 
-export function index(options: any): Rule {
+export default function(options: any): Rule {
   return chain([
     buildComponent(
       {...options},

projects/ng2-charts/schematics/ng-generate/radar/index.ts

@@ -2,7 +2,7 @@ import { chain, noop, Rule } from "@angular-devkit/schematics";
 import { buildComponent } from "@angular/cdk/schematics";
 import { addChartsModulesToModule } from "../../utils/project"
 
-export function index(options: any): Rule {
+export default function(options: any): Rule {
   return chain([
     buildComponent(
       {...options},

projects/ng2-charts/schematics/ng-generate/scatter/index.ts

@@ -2,7 +2,7 @@ import { chain, noop, Rule } from "@angular-devkit/schematics";
 import { buildComponent } from "@angular/cdk/schematics";
 import { addChartsModulesToModule } from "../../utils/project"
 
-export function index(options: any): Rule {
+export default function(options: any): Rule {
   return chain([
     buildComponent(
       {...options},