The linter report 'private field 'decimals' is not used'. The
getDecimals() method return pack.defDecimals, which was also
used to set the value of the decimals variable in the initializer,
so the decimals variable is redundant.
Return schemas name and description vectors sorted by number, so
index can be used later to select particular schema.
Fixes: 1155f0d752 ("Base: simplify UnitsSchemas management")
Fixes: Maintaining schemas is difficult and error-prone
- Facilitate easy schemas add, remove, change, etc.
- Remove 14 files containing approx 2,190 lines of if/else code and data
- Place data in one file (UnitsSchemasData.h) using a normalized structure (including special functions)
- Isolate and simplify data operations (code)
- Remove schemas enum to keep data independent of code
- Separate responsibilities: Specifications, data, schemas, schema
- Add schema data 'isDefault'
- Add schema data name
- Prefer algorithms to raw loops
- Add schemas unit tests
- Tweak quantity unit tests
