Add API endpoints "get list of analysis_status" and "get list of asset_type"

[cudeso]

Have an API endpoint that returns the list of defined analysis_status ("id", "value") and the list of defined asset_type ("id","value").

[whikernel]

Thanks @cudeso !

The first one analysis_status will be integrated in this issue #17, tho not specified directly in the issue.

The second one already exsists but was not reported in the documentation.
You can make a GET on manage/assettype/list to retrieve them.

I'll close this issue and create a new one referencing yours in the documentation repo to update.