feat(writer/standard): extend DrawContext with Neighbours bitmask ind…

…icating adjacent isSet blocks (#130)

Merge pull request #127 from 1azar/feat/implement-gradient

dep: upgrade all writers go-qrcode version

dep: upgrade all writers go-qrcode version

dep: upgrade all writers go-qrcode version

dep: upgrade all writers go-qrcode version

dep: update go.work and go.mod of example and standard (#125)

bug(writer): pre-multiply RGB by A (#111)

color.RGBA is pre-multiplied by alpha. When A is 0 the only valid value for R, G and B is 0.

When drawing a logo with an alpha channel the blending operation may overflow when R, G, B have invalid values (i.e larger than A).

Merge pull request #105 from yeqown/optimise/load-alignment-pattern-loc

feat: using precalculation for alignPattern locations

Fix data race in loadAlignmentPatternLoc (#104)

* Fix data race in loadAlignmentPatternLoc

* Add test for loadAlignmentPatternLoc with concurrent access

* go test with -race flag