Rework glucose dialog

[BrianWieder]

This ports https://github.com/Artificial-Pancreas/iAPS/pull/272 into Open-iAPS, which replaces the manual glucose entry pop-up with a sheet.

This is part of #47

[bjornoleh]

I tested the PR, and it works as intended.

However, it does not make sense to display mmol/L (or mg/dL) as header, and then repeat the units after each BG value. I am sure this is not what @dnzxy wanted (after reading the iAPS PR 272 discussions)

The minimal change that would make this look reasonable, is to replace the units in the header with "Glucose" (and make sure this is localised).

Screenshot from one of the suggestions in the iAPS PR:

Alternatively, only display units in the header, as was also presented in the other PR:

[dnzxy]

However, it does not make sense to display mmol/L (or mg/dL) as header, and then repeat the units after each BG value. I am sure this is not what @dnzxy wanted (after reading the iAPS PR 272 discussions)

The add glucose button belongs in the top right-hand corner of that view to adhere to iOS design guidelines. I had long discussions about this and could not get it in. Personally, I'm all for omitting the unit. It's clear from the app settings which unit was applied, so it is not necessary to display it in every row.

Personally, I also like the inverse (first value, then time), but that's a personal preference. It's how I have it in my personal build.

[bjornoleh]

Thanks. I also notice that the unique ID is displayed for every reading, this is not meant for humans to read, and can safely be omitted too.

[BrianWieder]

Ah now knowing its alright if we deviate a bit from the original PRs, I will make some further changes. I am going to close this PR and combine this and the port of https://github.com/Artificial-Pancreas/iAPS/pull/314 into one PR.