Add BF Scripts to OpenTX 2.3.x Tools screen

[frozenskys]

Adds the betaflight scripts to the OpenTx Tools screen introduced in 2.3. Needs the virtual event changes merged from #250 first

This was split from #252

[raphaelcoeffic]

@frozenskys sorry for the disagreement, but could you please rebase on top of the current virtual-events branch? I rebased /squashed the commits with my back-and-forth. Please note that when you use the correct base branch, it makes it clearer on which PR yours is based.

[raphaelcoeffic]

@mikeller @frozenskys I don't know what you think, but I'd say we should even remove /BF/bf.lua in favour of this one. There is no point in having the "standalone" startup script, as all the radios have the tools menu now, and it is really much better than going to the SD manager.

[mikeller]

@raphaelcoeffic:

I don't know what you think, but I'd say we should even remove /BF/bf.lua in favour of this one.

Yes that makes sense. We could add an empty file named /BF/use_tools_menu_instead_of_this.txt for a couple of versions to help users make the switch. 😉

[frozenskys]

@raphaelcoeffic sorry - I thought I had based off your branch - apologies I'm no git expert but I'll retry, and add the txt file :)

[raphaelcoeffic]

No problem! You probably did, but then I rebased my stuff to simplify/squash things. So it’s now based on the old version.

[frozenskys]

Help, not sure my rebase has worked :( any advice appreciated.

[raphaelcoeffic]

@frozenskys in case you invite me, I can rebase it for you and push it to your branch.

[frozenskys]

Invited thanks! - and be careful, it's a mess in there - git is not my friend... yet!

[raphaelcoeffic]

@frozenskys done!

@mikeller should we just only have the text file extra? I thought removing /BF/bf.lua as well.

[mikeller]

@raphaelcoeffic: Yes, the idea was to remove /BF/bf.lua and add the text file, so when a user goes there in the file explorer when they want to start the script they see the text file and know what to do.