[SEBA-853] Building BBR and BBSim as part of the scale test pipeline

Change-Id: I007fc7d0d18f039ccf6e3ba059641497404b3d88
diff --git a/Dockerfile.builder.dockerignore b/Dockerfile.builder.dockerignore
new file mode 100644
index 0000000..b9c9f04
--- /dev/null
+++ b/Dockerfile.builder.dockerignore
@@ -0,0 +1,9 @@
+build/*
+deployments/*
+vendor/*
+release/*
+tests/*
+docs/*
+bbr
+bbsim
+bbsimctl
\ No newline at end of file