1053 bug open source url field

Description

open source url field not displayed when isopensource radio button is clicked in edit mode. In catalog contribution/edit page, opensource url field is not being displayed when isOpenSource radio button value is "yes".

Added an onclick function on the input radio button to show/hide sourceurl field. MoveSelector method is added to move the "Select a contribution type" div accordingly.

Fixes #1053

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rokwire / rokwire-building-blocks-api