sysmon: Move process metrics to its own module

Well be adding more metrics, so split it out first before it gets
bigger.

BUG=chromium:728911
TEST=None

Change-Id: I9d3948bab815eff69bfde159ed524f7f060bc9ea
Reviewed-on: https://chromium-review.googlesource.com/543898
Commit-Ready: Allen Li <ayatane@chromium.org>
Tested-by: Allen Li <ayatane@chromium.org>
Reviewed-by: Paul Hobbs <phobbs@google.com>
diff --git a/scripts/sysmon/__main__.py b/scripts/sysmon/__main__.py
index c5a408f..fe94368 100644
--- a/scripts/sysmon/__main__.py
+++ b/scripts/sysmon/__main__.py
@@ -22,6 +22,7 @@
 from chromite.scripts.sysmon import loop
 from chromite.scripts.sysmon import net_metrics
 from chromite.scripts.sysmon import osinfo_metrics
+from chromite.scripts.sysmon import proc_metrics
 from chromite.scripts.sysmon import prod_metrics
 from chromite.scripts.sysmon import puppet_metrics
 from chromite.scripts.sysmon import system_metrics
@@ -51,7 +52,7 @@
     system_metrics.collect_disk_info()
     system_metrics.collect_mem_info()
     net_metrics.collect_net_info()
-    system_metrics.collect_proc_info()
+    proc_metrics.collect_proc_info()
     system_metrics.collect_load_avg()
     puppet_metrics.collect_puppet_summary()
     git_metrics.collect_git_metrics()