3.4-rc3

Changes since release 3.4-rc2:

• README: add hint for possible graphics issue solution for win systems [ffd1691]
• Fix voltageScale to correct indices for ISDS205b [d0f44f8]
• Merge branch 'isds205b/channelCalFix' of https://github.com/wakass/OpenHantek6022 into wakass-isds205b/channelCalFix [09d0e28]
• Fix voltageScale to correct indices [a207f5f]
• README update, add solution Crostini graphics issue; build info update [b9d6560]
• README update [29dbcca]
• fix #399 - update macos build instructions, hack nedded no more [9c1e9e8]
• fw refactoring - no functional change [3ac5c3a]
• Merge branch 'wakass-main' - Instrustar 205X support #394 [ad43d3b]
• small fw update - functional change [5531981]
• Instrustar 205X support (PR #394) [b8fb40b]
• Updated calibration values after measurement. [0e2c641]
• doc update, add windows driver license info [211e9c8]
• Instrustar 205B: Update samplerate table [81eb42d]
• Initial support for Instrustar 205A/B [59d7aa3]