Add blur and focus public functions
Add blur and focus public functions

So it can be called throught MaterialTextfield instead of retrieving the inner input element
sbrieuc/material-design-lite,sbrieuc/material-design-lite,2947721120/material-design-lite,material-components/material-components-web,Yizhachok/material-components-web,pgbross/material-components-web,2947721120/material-design-lite,mattbutlar/mattbutlar.github.io,Yizhachok/material-components-web,anton-kachurin/material-components-web,rrenwick/material-design-lite,rrenwick/material-design-lite,pgbross/material-components-web,material-components/material-components-web,material-components/material-components-web,anton-kachurin/material-components-web,iamrudra/material-design-lite,iamrudra/material-design-lite