bugfix; update benchmark demo

Merge pull request KittenYang#19 from KittenYang/update_pod

update version to 1.1.16

Merge pull request KittenYang#16 from KittenYang/spm_swiftui

bugfix: spm swiftui

Merge pull request KittenYang#14 from KittenYang/query_image_update

Query image bug fixed

Merge pull request KittenYang#11 from KittenYang/darwin

 import Darwin

Update README.md

Merge pull request KittenYang#8 from KittenYang/spm_supported

SPM / Carthage supported

Merge pull request KittenYang#6 from EyreFree/master

OTHER_LDFLAGS

Merge pull request KittenYang#4 from EyreFree/master

fix: subspec

bugfix: clear background color auto set alpha info to bitmap