IPAd_Tests: add testsuite for an IPAd

With this patch we add a testsuite that can be used to test an IPAd
implementation.

The testsuite emulates the ESipa and the ES10x (pcsc cardreader)
interface and is capable of testing a direct profile download and other
ESipa features like the execution of an eIM package (eCO, PSMO).

Change-Id: Ic9ea8c69e56a2e8ddf0f506861ece6d40cbcb06d
Related: SYS#6564
diff --git a/ipad/example_ca/pki/index.txt.attr b/ipad/example_ca/pki/index.txt.attr
new file mode 100644
index 0000000..3a7e39e
--- /dev/null
+++ b/ipad/example_ca/pki/index.txt.attr
@@ -0,0 +1 @@
+unique_subject = no