bump version to v2.0.20

🔧 fix go modules

🔧fix go modules

🌳 nicer

🌳 nicer

bump version to v2.0.19

move owner of the repo

Merge pull request #27 from knbr13/optimize-build-options-func

use strings.Builder instead of strings concatenation + use type switch instead of reflection

Merge pull request #26 from knbr13/modify-cache-type

update cache type: make map of empty struct

add more test cases

save a lot of memory by using pointers

Merge pull request #24 from AAVision/main

fix issue #25