OOK Editor enhancements

[gullradriel]

Description of the feature you're suggesting.

In the new OOK Editor, we would like to add the following behaviors:

• if a file is loaded, and we want to save it, the text edit should show us the original name without the extension, to allow to overwrite if needed
• we want to add a check if the user entered the extension in the name (.ook, .OOK, .Ook whatever the case) at the end of the output name, and remove it, since '.OOK' is automatically added later
• when the payload is having random text, replace everything that would be converted to 1 by 1, and others to 0 or ignored
• when there is a F of a f in the payload, add two consecutive 1
• maybe find a way to use something similar to the other OOK app to allow quick payload edit
• make save/load buttons in the other OOK app
• display computed symbol duration

[htotoo]

Make a save button in the other app, to save in the new ook file format