overview-manual: Added new "overview" manual to YP doc set

Fixes [YOCTO #12370]

I added all the mechanics for this new "Yocto Project Overview Manual".
For now, the manual builds and publishes into the 2.5 area.  I used
"overview-manual" for the folder name.  Makefile properly builds the
new manual.  The mega-manual.sed file processes links for the new manual.
The mega-manual.xml file includes the new manual.  The poky.ent file
includes a new ENTITY link for the overview manual.  All pieces are in
place.

With this commit, just an overview chapter exists.  The remaining content
needs to be developed.

(From yocto-docs rev: 632ebd4a91920585e736527e070ca8363a00f41b)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/documentation/poky.ent b/documentation/poky.ent
index bbef07bb5e..1be7be8e85 100644
--- a/documentation/poky.ent
+++ b/documentation/poky.ent
@@ -59,6 +59,7 @@
 <!ENTITY YOCTO_DOCS_BB_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/bitbake-user-manual/bitbake-user-manual.html">
 <!ENTITY YOCTO_DOCS_TOAST_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/toaster-manual/toaster-manual.html">
 <!ENTITY YOCTO_DOCS_SDK_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/sdk-manual/sdk-manual.html">
+<!ENTITY YOCTO_DOCS_OVERVIEW_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/overview-manual/overview-manual.html">
 <!ENTITY YOCTO_ADTPATH_DIR "/opt/poky/&DISTRO;">
 <!ENTITY YOCTO_POKY_TARBALL "&YOCTO_POKY;.tar.bz2">
 <!ENTITY OE_INIT_PATH "&YOCTO_POKY;/oe-init-build-env">