Initial code to move deadline timer into a filter.  Timer cancellation
not working right -- will fix in subsequent commit.
diff --git a/package.xml b/package.xml
index 387afc3..5f774ef 100644
--- a/package.xml
+++ b/package.xml
@@ -185,6 +185,7 @@
     <file baseinstalldir="/" name="src/core/lib/channel/compress_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/connected_channel.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/context.h" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/channel/deadline_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/handshaker.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/http_client_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/http_server_filter.h" role="src" />
@@ -344,6 +345,7 @@
     <file baseinstalldir="/" name="src/core/lib/channel/channel_stack_builder.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/compress_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/connected_channel.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/channel/deadline_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/handshaker.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/http_client_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/http_server_filter.c" role="src" />