Add NVIDIA Jetson SODIMM modules

Add symbols for Nvidia Jetson modules.

Datasheets (requires login):

• Orin Nano
• Orin NX
• Nano
• Xavier NX
• TX2 NX

Screenshots (Jetson Nano only):

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• 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.

  • Violating S3.1 - https://klc.kicad.org/symbol/s3/s3.1/
    Some units are 50mil off-grid to comply with pin alignment

  • Violating S4.2 - https://klc.kicad.org/symbol/s4/s4.2/
    Symbols have 77 GND and VDD pins, putting them at the bottom would make it extremely wide and hard to use. I also tried to match the symbol used in schematic for Jetson development kits which have them on the side.

  • Violating S5.1 - https://klc.kicad.org/symbol/s5/s5.1/
    This commit does not add a matching SODIMM footprint because:

    1. There are no obvious right or default choice of a SODIMM connector footprint
    2. It also requires mounting standoffs which can have multiple different styles/footprints in addition to the SODIMM connector
    3. MCU_Module:RaspberryPi-CM1/3/3+ symbol does not provide a SODIMM footprint either

    It does add a *SODIMM* filter like the RaspberryPi-CM1/3/3+ symbol.