v0.9.7

VideoIO v0.9.7

Diff since v0.9.6

Closed issues:

• Tests fail on Julia v1.4 (#329)
• opencamera() not working and simultaneous encode/mux test reports as broken (Julia 1.6.3, VideoIO 0.9.6) (#341)
• Can't get images from webcamera (Ubuntu Julia 1.7) (#344)
• opencamera on a Raspberry Pi (#346)

Merged pull requests:

• add RGB -> monochrome read test (#315) (@IanButterworth)
• fix error of opencamera() (#345) (@hhaensel)