Add support for chlorine release

We have a new release and CSIT gets bitten by files not being present.
Fix that up.

Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
Change-Id: Iebd3ab410eda1d020b2620b54c659a55ff37f46d

diff --git a/csit/variables/bgpclustering/chlorine b/csit/variables/bgpclustering/chlorine
new file mode 120000 (symlink)
index 0000000..121ca56
--- /dev/null
+++ b/csit/variables/bgpclustering/chlorine
@@ -0,0 +1 @@
+aluminium
\ No newline at end of file

diff --git a/csit/variables/pcepuser/chlorine b/csit/variables/pcepuser/chlorine
new file mode 120000 (symlink)
index 0000000..121ca56
--- /dev/null
+++ b/csit/variables/pcepuser/chlorine
@@ -0,0 +1 @@
+aluminium
\ No newline at end of file

diff --git a/csit/variables/tcpmd5user/chlorine b/csit/variables/tcpmd5user/chlorine
new file mode 120000 (symlink)
index 0000000..121ca56
--- /dev/null
+++ b/csit/variables/tcpmd5user/chlorine
@@ -0,0 +1 @@
+aluminium
\ No newline at end of file