Nxstage 295 heading and two columns

src/components.d.ts

src/components/heading/heading.scss

src/components/hy-box/readme.md

src/components/hy-two-columns/hy-two-columns.scss

src/components/hy-two-columns/hy-two-columns.tsx

src/components/hy-two-columns/readme.md

src/components/hy-two-columns/test/hy-two-columns.spec.tsx

src/components/image/image.scss

src/index.html