sdk-manual: appendix-obtain: replace eSDK directory structure PNG with a parsed-literal block

This PNG is totally unnecessary and makes accessibility much worse, so
let's simply replace the PNG with a parsed-literal block showing the
same directory layout with the same highlighted placeholders.

While at it, update the layout to match the more recent one (5.0.15) and
have it alphabetically sorted (mixed files and directories).

The placeholders are highlighted the same way inside and outside the
parsed-literal block for consistency.

(From yocto-docs rev: 923a35a87f72af7a678bb942186cef1cc81e1ab9)

Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
(cherry picked from commit 77b24b4a8d437797ab25dfeb37ae5cd911c52d31)
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/sdk-manual/appendix-obtain.rst

@@ -329,13 +329,29 @@ directories within the ``sysroots`` could be ``i586-poky-linux`` and
 Installed Extensible SDK Directory Structure
 ============================================
 
-The following figure shows the resulting directory structure after you
-install the Extensible SDK by running the ``*.sh`` SDK installation
-script:
+After you install the Extensible SDK by running the ``*.sh`` SDK installation
+script, the following directory structure should be observed:
 
-.. image:: figures/sdk-installed-extensible-sdk-directory.png
-   :scale: 80%
-   :align: center
+.. parsed-literal::
+
+   *install_dir*/
+   ├── bitbake-cookerdaemon.log
+   ├── buildinfo
+   ├── buildtools/
+   ├── cache/
+   ├── conf/
+   ├── .devtoolbase
+   ├── downloads/
+   ├── environment-setup-*target*-poky-linux
+   ├── layers/
+   ├── oe-time-dd-test.dat
+   ├── preparing_system_build.log
+   ├── site-config-*target*-poky-linux
+   ├── sstate-cache/
+   ├── sysroots/
+   ├── tmp/
+   ├── version-*target*-poky-linux
+   └── workspace/
 
 The installed directory structure for the extensible SDK is quite
 different than the installed structure for the standard SDK. The
@@ -348,7 +364,7 @@ the SDK, a configuration file for the target, a version file for the
 target, and log files for the OpenEmbedded build system preparation
 script run by the installer and BitBake.
 
-Within the figure, italicized text is used to indicate replaceable
-portions of the file or directory name. For example, install_dir is the
+In the layout above, italicized text is used to indicate replaceable
+portions of the file or directory name. For example, *install_dir* is the
 directory where the SDK is installed, which is ``poky_sdk`` by default,
-and target represents the target architecture (e.g. ``i586``).
+and *target* represents the target architecture (e.g. ``i586``).