Introduce KUBEVIRT_E2E_RUN_ALL_SUITES to continue serial tests
Introduce KUBEVIRT_E2E_RUN_ALL_SUITES to continue serial tests

If KUBEVIRT_E2E_RUN_ALL_SUITES is set to "true" we do not exit, instead
we run the other test suite and exit only in case of error.

Signed-off-by: Daniel Hiller <7d48ffa1ba2c479d4ee671710c0799f4b0a3eb8f@redhat.com>

kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt