reworked all DIP-switch footprints (naming, style, some new, ...)

Created by: jkriege2

• script-generated: https://github.com/pointhi/kicad-footprint-generator/pull/106 (reworked existing scripts)

• reworked naming:

  • SW_DIP_[SWITCHTYPE]x[#SWITCHES]_[SWITCHSTYLE]_[X]x[Y]x[Z]mm_W[LEAD_SPAN]mm_P[PITCH]mm_[MODIFIERS]
  • SW_DIP_[SWITCHTYPE]x[#SWITCHES]_[SWITCHSTYLE]_[MAN]_[MPN]_W[LEAD_SPAN]mm_P[PITCH]mm_[MODIFIERS]
    • SWITCHTYPE - SPST,...
    • #SWITCHES - Number of switches in package
    • SWITCHSTYLE - SLide, Piano, ...
    • MAN - manufacturer
    • MPN - manufacturer part number
    • X - Major dimension of part on x axis
    • Y - Major dimension of part on y axis
    • Z - Major dimension of part on z axis (Optional)
    • Lead span - Distance between leads
    • Pitch - Lead pitch
    • Modifiers - Modifiers to footprint specifications Options - Extra footprint options (Optional)

• reworked style (especially pin1-marker: L on THT/SMD-mounted-THT and standard-markers for SOIC-style SMDs)

• added some new: SW_DIP_SPSTxXX_Slide_..._LowProfile_JPin

• improved descriptions (body-size, webpage/datasheets ...)

• also includes the footprints required there: https://github.com/KiCad/kicad-footprints/pull/216

• NOTE: This requires some renames of 3D models!!! ... I will add an issue for that as I pressume these are script-generated: https://github.com/easyw/kicad-3d-models-in-freecad/tree/master/cadquery/FCAD_script_generator/DIP_parts done by @terjeio ???

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