Add a --raw flag to kubectl config view

Defaults to false, unless --flatten is specified. Default behavior
(--raw=false) is that byte data (Client{Certificate,Key}data,
CertificateAuthorityData) is redacted for a more human-readable view.
Useful for manually inspecting files that have embeded data.

docs/man/man1/kubectl-config-view.1

@@ -48,6 +48,10 @@ You can use \-\-output=template \-\-template=TEMPLATE to extract specific values
 \fB\-\-output\-version\fP=""
     Output the formatted object with the given version (default api\-version).
 
+.PP
+\fB\-\-raw\fP=false
+    display raw byte data
+
 .PP
 \fB\-t\fP, \fB\-\-template\fP=""
     Template string or path to template file to use when \-o=template or \-o=templatefile.  The template format is golang templates [