hob: remove the rest of the old template functionality

Until now, some configuration settings was saved in a hob specific
directory. From now on, it will be saved in conf directory through bitbake.

Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
bitbake & hob: modify some commands and call them from hob

This patch adds a new command to create an extra configuration
file, in order to create it from Hob.
Also, it calls the enable/disable data tracking when needed.
Modified the prefiles and postfiles variables because the cooker
expects some lists.

Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
hob: check if imageconfiguration page has the attribute 'warnings_bar'

[YOCTO #4571]
Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Allow checksums to be used for files retrieved using SFTP

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Correct a typo

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
bitbake: remove the function for reparse because it does nothing

The command for reparse does nothing, so I have managed to remove it,
because it can be misleading. When a reparse is needed, it can be used
the parse function.

Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>