kcsbridge: Add alternative daemon

This removes the unused signal handling logic and ensures that the main
event loop only drives timeouts from the management channel, and
transitions back to reading when needed.

Change-Id: I01a70de8b301b5ba0b417922fd6a6555433e18b7
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/.gitignore b/.gitignore
index 90752d7..4849188 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 /**/build*/
 /**/subprojects/*/
 !/**/subprojects/acpi-power-state-daemon/
+!/**/subprojects/kcsbridge/
 !/**/subprojects/metrics-ipmi-blobs/
 !/**/subprojects/ncsid/
 /**/subprojects/*.wrap