TUI: Replace DevAPI statline_before with a predefined temperature column to free up statline space
README: Update statlines
DevAPI: Remove old statline APIs entirely, and add new override_statline_temp (used by modminer/x6500 for upload %)
opencl: Add fan speed to Manage device TUI now that it's been removed from statline
Merge branch 'tui_no_devapi_statline' into bfgminer