Enhanced mdc-select menu does not stay open on touch.

[Jordan-Amanda]

Describe the bug
in the enhanced mdc-select menu does not handle touch taps. Like on android devices. it treats them like a double click so the mdc-menu only opens for fraction of a second then closes and does not remain open.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'https://trimox.github.io/angular-mdc-web/#/angular-mdc-web/select-demo/examples'
2. Press 'F12' to open up chromes inspect menu.
3. Click on 'Toggle device Toolbar' looks like:
   
   this should make your cursor a touch dot instead of a mouse cursor.
4. Scroll down to the 'Enhanced Select'
5. Click on the word 'Fruit*' in the select
6. See error

Expected behavior
Option Menu should stay open and let the user select other options in the menu, without closing right away.

Screenshots
If applicable, add screenshots to help explain your problem.

What Angular MDC version are you using? 0.43.4

What OS are you using?: Android and chrome.

What browser(s) is this bug affecting?: chrome and apps on android devices.

Additional context
Add any other context about the problem here.

[trimox]

@Jordan-Amanda Thanks for reporting this!

Also, found related issue upstream material-components/material-components-web#4173

Will investigate and let ya know.

[trimox]

Planning to remove touchstart from select, at least until resolved upstream.