0.4  2022-09-1  lichtkind
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    * = initial CPAN release
    * + 4 pendula: X, Y, Z (wobble), Rotating with haveing each setting of
    *   - pendulum length (amplitude)
    *   - frequency (integer + decimal), invertable 
    *   - offset, checks for 90 and 180 degree
    * + line length, dot denisty and dot size
    * + color flow: no, linear, alternating, circular
    * save images as SVG, JPEG and PNG
    * save and load settings in INI files
    * quick save of images and settings for series of files