Small kool showcase examples#532

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elect86 wants to merge 3 commits intomainfrom

Commits on May 26, 2023

- added kool library dependency
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- `shl` has lower priority than multiplication (this is a drawback of the still missing bitwise operators in Kotlin), fixing with parenthesis
elect86
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Commits on May 30, 2023

- fixed signature operators name clashing
elect86
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