src: Improving consistency and correcting code style

As of this commit, all data structures can be directly constructed from
wire format.

This commit excludes full correction of code style in security/ and
tools/ndnsec*, which will be part of a different commit.

Change-Id: I121ac1f81948bc7468990df52cdefeb2988d91a1
Refs: #1403
diff --git a/src/management/ndnd-controller.cpp b/src/management/ndnd-controller.cpp
index a283826..32a19cd 100644
--- a/src/management/ndnd-controller.cpp
+++ b/src/management/ndnd-controller.cpp
@@ -197,7 +197,7 @@
 
   Block::element_const_iterator val = content.elements_begin();
 
-  switch(val->type())
+  switch (val->type())
     {
     case tlv::ndnd::FaceInstance:
       {
@@ -243,7 +243,7 @@
 
   Block::element_const_iterator val = content.elements_begin();
 
-  switch(val->type())
+  switch (val->type())
     {
     case tlv::ndnd::ForwardingEntry:
       {