report-error.bbclass: Add layer and bitbake version info to error report

Instead of just providing local.conf info, add layer names and their
revisions with bitbake version information into error report
makes it easier to understand and reproduce failed build.

[YOCTO #9700]

Signed-off-by: Milan Shah <mshah@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>