add no_testcase_installs for tests to avoid installation
add no_testcase_installs for tests to avoid installation

fixes #49

Yubico/yubikey-personalization-gui,eworm-de/yubikey-personalization-gui,eworm-de/yubikey-personalization-gui,Yubico/yubikey-personalization-gui,Yubico/yubikey-personalization-gui,eworm-de/yubikey-personalization-gui