bug(platform): select component uses label as a value

[N1XUS]

Is this a bug, enhancement, or feature request?

bug

Briefly describe your proposal.

Currently, select component of the platform uses label property as a value of the control, which is wrong because OptionItem provides ability to define value separately from label. This can cause confusion on the usage of the component and misconfiguration of the default value of the control.

Which versions of Angular and Fundamental Library for Angular are affected? (If this is a feature request, use current version.)

current

If this is a bug, please provide steps for reproducing it.

1. Go to https://fundamental-ngx.netlify.app/#/platform/select#reactive-form
2. Select some option from the select dropdown list

ER: Selected item should be equal to the value property of the option object
AR: Selected item is equal to the label property of the option object