Fixes

Fixes from PR:
#13

QueryTaxPayer implementation & tests

Released new PR which was:
#12

Round gross price

Fixed at #11

Invoice validation, quantity accepts negative values also

Modify validation rule, as items quantity accepts negative values also.

Remove self certificate option, cleanup tests

This release clearly follow up the current latest changes:
https://tudastar.szamlazz.hu/gyik/technologiai-valtozasok-2024

Cleanup tests, so it won't show warning messages.

Change 'adoalany' order in xml to avoid error

1.6.1

code format

Add EU tax number handling properly

Now beside of taxSubject property, you can add taxNumberEU also, so you can send EU tax number properly.

Added Redmenta fixes

Related to #7

Fix missing trait, CustomerTaxSubjects #5

Fixing the following issue:

#5

Extended with Adóalany field.

Thx for @boliver20