- Integer Underflow if buffer was smaller than 4 bytes (usually when its empty) resulting in a panic on debug builds
 - Not finding a signature when the buffer ended with a signature (usually not a problem because usually if the buffer ends with a signature the data-package is invalid anyway, expecet it only contains a signature)

improve Error handling, by implementing the Error trait (on std only, currently because tracking error_in_core #103765 is quite new yet).
get rid of the From impl between Dynamic and Fixed, which causes some bugs, by implcit converting.
Extend the Documentation for errors, and add tests for some errors in parsing

add from method for CompressionMethod, and a basic example to extract a single file from a zip archive