Long overdue touchups

Long overdue additions

Closes #329
Closes #324
Closes #331
Should Close #321
Should Close #301

Bug fixes for OLED

This is a minor patch version to fix issues with the LCD & Lockups.

please raise an issue if this persists for you.
Also should fix the B button being held to exit soldering entering into the version info screen.

Version info screen also gains more debug values that can be cycled through with the front button.

V2.04

This adds some more UI tweaks, including drawing tip temp on the simple IDLE when you have a hot tip.

New Iron Support, New Menu

v2.03

Enable SWD back, Add Off mode for Sleep

New small font & Bug Fixing

This adds the extended small 6x8 font (#173 / #176 )
Improves a few translations
Fixes the memory bug where I had accidentally located the settings table 8K too early in flash. This was causing weird bugs in fonts/calibrations/settings.

This does mean you will need to re-generate the bootup logo HEX file for those of you who use them.
The python script is already updated, and a new GUI C# app is included below.

More languages, better lcd

This improves and updates almost all languages.
Starting to add support for a better settings menu (English only so far, fix #148 and #149 for other languages).

V2.0 Release

This is a big changeup from the original 1.x firmware builds.
Completely re-written from scratch over the last few months.
Brings in better performance, more screen options and hopefully a much smoother user experience.
This is very similar to alpha 6, with minor bugfixes and sensitivity reduced. So should hopefully be fairly error free.

Translations are bought over from 1.17, so where missing there is English for now.
Anyone who wants to fix up the translations, just revive the old Issues for the language with new translations and I will update :)

V2.0 Alpha 6

Reduces display flicker
Fixes the motion detection not working for some users.

If no more issues found will most likely be the main 2.x release.

Extended translations

This release updates the description strings to be more uniform, and to have extra languages.

Adding bootup image support.

This release adds support for having a bootup logo on the iron.
To get this to work, first, flash this firmware.
Then create a bootup logo using instructions in the readme.