* add a little Stash utility.
* add radio state RAII helper.
* first part of radio_state changes
* add radio_state_ to rest of apps
* fix freq_step and format
* fix unused ui_sigfrx: corrected sample rate, added back freq setting
* easier 'now', start adding text editor
* Adding scrolling to notepad
* Better scrolling
* Better scrolling, off-by-1 bugs
* MVP fit and finish
* Add tiny font and use in Notepad
* Font tweaking, tiny font cursor
* Fix warning
* Format changed files
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Co-authored-by: kallanreed <kallanreed@outlook.com>
PR to increase the BW Options in the Capture App , beyond the current max, 500khz. (from 600Khz till 2,75Mhz) all of them work well into the screen, but only <= 600Khz BW are correctly saved into SD Card with full captured data. (Onwards, >600Khz optiions, at the moment , the created SD card file has decimated data, due - to SD Card writting speed limitations),- but I feel still quite interesting feature to keep them.
