use material ui icons instead of fontello, do not import google font

package-lock.json

package.json

src/mol-plugin-ui/base.tsx

src/mol-plugin-ui/camera.tsx

src/mol-plugin-ui/controls.tsx

src/mol-plugin-ui/controls/action-menu.tsx

src/mol-plugin-ui/controls/common.tsx

src/mol-plugin-ui/controls/icons.tsx

src/mol-plugin-ui/controls/parameters.tsx

src/mol-plugin-ui/left-panel.tsx

src/mol-plugin-ui/sequence.tsx

src/mol-plugin-ui/skin/base/base.scss

src/mol-plugin-ui/skin/base/components/controls-base.scss

src/mol-plugin-ui/skin/base/components/misc.scss

src/mol-plugin-ui/skin/fonts/fontello.eot

src/mol-plugin-ui/skin/fonts/fontello.html

src/mol-plugin-ui/skin/fonts/fontello.svg

src/mol-plugin-ui/skin/fonts/fontello.ttf

src/mol-plugin-ui/skin/fonts/fontello.woff

src/mol-plugin-ui/skin/fonts/fontello.woff2