v1.1.3 Updated dependencies

@rjsf/material-ui from 2.4.2 to 2.5.1
@rjsf/core from 2.4.0 to 2.5.1
@material-ui/core from 4.11.3 to 4.11.4
@babel/core from 7.12.9 to 7.14.0
@babel/cli from 7.12.8 to 7.13.0
@babel/plugin-proposal-object-rest-spread from 7.12.1 to 7.13.8
@babel/plugin-transform-runtime from 7.11.5 to 7.13.8
@babel/preset-env from 7.11.5 to 7.14.0
@babel/runtime-corejs2 from 7.12.5 to 7.13.8
@babel/preset-react from 7.12.1 to 7.12.13
@babel/register from 7.11.5 to 7.12.10
webpack-cli from 4.0.0 to 4.4.0
html-webpack-plugin from 4.5.0 to 4.5.1
use node 12 as a default version for local dev
add node v14 to github actions
Adds a playground example that uses Material templates
[Security] y18n from 4.0.0 to 4.0.1
[Security] ssri from 6.0.1 to 6.0.2
react-dom from 16.13.1 to 16.14.0
mini-css-extract-plugin from 1.0.0 to 1.6.0
css-loader from 5.0.1 to 5.1.0
enzyme-adapter-react-16 from 1.15.5 to 1.15.6
lint-staged from 10.5.1 to 10.5.3
babel-jest from 26.5.2 to 26.6.3
husky from 4.3.0 to 5.1.2
prettier from 2.1.2 to 2.2.1
eslint-plugin-jest from 24.1.3 to 24.3.6
eslint-plugin-standard from 4.0.1 to 5.0.0
eslint-plugin-react from 7.21.5 to 7.22.0
eslint from 7.11.0 to 7.16.0
@testing-library/react from 11.0.4 to 11.2.6
@testing-library/jest-dom from 5.11.4 to 5.11.8