Switch from GetNodes to GetNodes2

[JanGalek]

more info - https://github.com/Nevcairiel/HandyNotes/commit/cf6c7a482ffdfc8be4b9e48acb1aa33a92c56388

we should work with uiMapID instead of mapFile

[idiomatic]

This may be a substantial, fragile, yet interesting task.

The substantial parts include:

• [ ] build mapFile+dungeonLevel to uiMapID map, including when dungeonLevel is undefined.
• [ ] apply map to 11k rows of the spreadsheet [@idiomatic volunteers].
• [ ] patch derive.coffee to build with uiMapID [@idiomatic volunteers].
• [ ] patch HandyNotes_Achievements.lua to use GetNodes2, replacing mapFile and dungeonLevel with the unified uiMapID.
• [ ] test all over the place.
• [ ] deprecate mapFile+dungeonLevel from spreadsheet and derive.coffee [@idiomatic volunteers].

It may be well suited for a branch. However, some parts can be implemented on master in non-destructive manner, such as the additive parts to AchievementLocations.

[JanGalek]

This should resolved problem with BFA :)

PS: I'm hard working on DB of uiMapIds ;)

[idiomatic]

see mapID spreadsheet for my unfinished stab at the table.

[idiomatic]

Note: the source of truth project gets many uiMapIDs for free. For better or worse, it also denormalizes the data.