Added Meanwell NSD10-D & NSD10-S DC/DC converters

This is a large 10W isolated DCDC converter. Available as single-output (NSD10-S) and dual-output (NSD10-D). datasheet, dual version datasheet, single version

Associated footprint pull request

Currently, the KLC check only fails due to the missing footprint (MR not merged yet)

• Remove the instructional content of this template
• Provide a URL to a datasheet for the symbol(s) you are contributing
• An example screenshot image is very helpful
• Ensure that the associated footprints match the official footprint library
  • A new fitting footprint must be submitted if the library does not yet contain one.
• If there are matching footprint PRs, provide link(s) as appropriate
• Check the output of the automated check scripts - fix any errors as required
• Give a reason behind any intentional library convention rule violation.