pseq: Create phosphor-power-sequencer application

Create the initial version of the phosphor-power-sequencer application.

Update or create meson and README files to support.

Signed-off-by: Jim Wright <jlwright@us.ibm.com>
Change-Id: I385358cc601448a35b3aae9bfa1c6488f1512c59
diff --git a/meson.build b/meson.build
index 3e0409e..4b356c7 100644
--- a/meson.build
+++ b/meson.build
@@ -128,6 +128,9 @@
 if get_option('sequencer-monitor')
     subdir('power-sequencer')
 endif
+if get_option('sequencer-monitor-ng')
+    subdir('phosphor-power-sequencer')
+endif
 if get_option('supply-monitor')
     subdir('power-supply')
 endif