Move devtool doc from extensible to dev manual

[YOCTO #13417]

devtool is not directly tied to the Extensible SDK anymore, and
instructions in there can be split and added to the development manual.

This patch is a simple bulk move, except for the following:

- Intro added to the devtool.rst document (mostly copy-pasted from the
  devtool quick reference in the ref-manual).
- Figures renamed to remove "sdk-" from filenames.
- References to sdk-manual/extensible replaced by dev-manual/devtool.

Reported-By: Paul Eggleton <bluelightning@bluelightning.org>
(From yocto-docs rev: 044d3185b858fce1febcfe3a6834b883f9a598fa)

Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/dev-manual/new-recipe.rst b/documentation/dev-manual/new-recipe.rst
index 944b9627f9..4a65d70243 100644
--- a/documentation/dev-manual/new-recipe.rst
+++ b/documentation/dev-manual/new-recipe.rst
@@ -56,7 +56,7 @@ necessary when adding a recipe to build a new piece of software to be
 included in a build.
 
 You can find a complete description of the ``devtool add`` command in
-the ":ref:`sdk-manual/extensible:a closer look at \`\`devtool add\`\``" section
+the ":ref:`dev-manual/devtool:a closer look at \`\`devtool add\`\``" section
 in the Yocto Project Application Development and the Extensible Software
 Development Kit (eSDK) manual.