Enable the icon component to take an svg as input

[samuelmaier]

When using standalone components, we need to provide the icons in each component. Sometimes we need to pass an icon from one component to another component, without knowing which icons to load beforehand AND without being able to use a dynamic loader.

Example:
I have a modal service taking a config. In the config I can define an icon to be display in the modals header. It is impossible to know, which icons the modal component needs to load AND loading the icons dynamically is not possible in my case.

Solution:
Enable the icon component to take either the name of the icon (which than gets loaded) or the svg of the icon directly. Therefor I can load the icon in one component and can pass it to any other component.

[ashley-hunter]

Thank you very much for the contribution! Will merge and release now, thanks!