upgrade to v2.13.0 (#8)

* upgrade to v13

* upgrading zxlib

* Adjusting CMakefile

* update zemu expectations

v0.12.0: Upgrade to v12 (#7)

* upgrade types

* bump version number

* updating zxlib

* update zemu tests

v0.11.3: Adjustments/Bug fixes (#4)

* upgrade zxlib

* adjust ValidatorPrefs type

* updating makefile

* updating icons

* updating zemu screenshots

v0.11.1

bump version number

v0.11.0: Merge pull request #1 from Zondax/dev

Add polkadot 11 support