Better check for negative numeric values like width, height, ...

[mdk]

What steps will reproduce the problem?

• add width=-3 to a waterway=stream

OR

• add height=-4 to a building=yes

Validate.

What is the expected result?

A warning that negative values are not allowed.

What happens instead?

An unspecific warning:
unusual value of width: meters is default: point is decimal separator: if units, put space than unit

Please provide any additional information below. Attach a screenshot if possible.

In general numeric tags which didn't support negative values should be checked for negative values.

Follow up of #14532

[Klumbumbus]

In 17934/josm:

Fix #21026, see #14532 - Better warnings for negative numeric values

[Klumbumbus]

In 17938/josm:

See #21026, see #14532 - Fix unit test

[Klumbumbus]

In 17939/josm:

See #21026, see #14532 - Fix unit test

[Klumbumbus]

In 17955/josm:

see #21026, see #14532 - Fix i18n