Move configuration functions into inc/*

* config/INI functions from functions-common to to inc/ini-config
* local.conf meta-config functions from lib/config to inc/meta-config

Change-Id: I00fab724075a693529273878875cfd292d00b18a
diff --git a/functions b/functions
index 79b2b37..9adbfe7 100644
--- a/functions
+++ b/functions
@@ -13,6 +13,7 @@
 # Include the common functions
 FUNC_DIR=$(cd $(dirname "${BASH_SOURCE:-$0}") && pwd)
 source ${FUNC_DIR}/functions-common
+source ${FUNC_DIR}/inc/ini-config
 source ${FUNC_DIR}/inc/python
 
 # Save trace setting