Ook remote adjustements

[gullradriel]

Following on the excellent contribution by @sasaga , I'm proposing the following tiny modifications:

• rename the app "OOK Remote"
• rename the class OOKRemote* instead of ROOK*
• rename the source dir ook_remote , source files ui_ook_remote.*
• rename the directory for ook files OOKFILES
• rename the extension to ".OOK" instead of ".ROOK"
• changed Start to Send
• added possibility to stop the Tx
• moved a bit the GUI
• renamed Symbols:XXXXus to BitTime:XXXXus
• renamed S/Steps thing to BitTimeStep
• added loaded file name info if one if loaded
• clear loaded file name if a field is modified
• changed too frequency field, allow save/restore/on change/on edit
• added placeholder for button_save

Picture of the changes in app:

[zxkmm]

it looks nice!
if you remove the swp file that maybe been mistakenly added, i'll approve

[htotoo]

Please use the language helper in this too. At least for the start, stop,.browse.

[zxkmm]

Thank you, will approve from my side and feel free to wait them to review their side.

[gullradriel]

Please use the language helper in this too. At least for the start, stop,.browse.

Done. Also added to language file and now in use: "Set" and "Open File"

[gullradriel]

TX start and stop is done and working

[sasaga]

I like changes