Add a smoke test for ImportProcessor.

Bug: 2733143
Change-Id: Iec63217c1b7be04ab0438bb76be96e70dc26e5d6
diff --git a/tests/assets/v21_simple.vcf b/tests/assets/v21_simple.vcf
new file mode 100644
index 0000000..86f4d33
--- /dev/null
+++ b/tests/assets/v21_simple.vcf
@@ -0,0 +1,3 @@
+BEGIN:VCARD
+N:test
+END:VCARD
\ No newline at end of file