Add more sample component(s) - HighCharts Map ( Angular/Typescript )

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### Requested feature description
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Reason for this issue, It's very difficult to understand from docs how we can integrate with angular and also most of sample on highcharts are using JS not typscript.

Please add more sample components that have demonstration how we can use highcharts maps for world ( which is already there) but with country and country drilldown.

Would be happy to add sample components and create pull request with help hand from any team member(**highcharts-angular**).

Thanks
Narendra Singh