sb. Add VERSION support for releasing the RSB.

Add support to release the RSB by adding the VERSION file. The file
is a single line with the version.

Fix the reports to include the version. Update the INI file
support to include the details of the build.

Show the GIT or released version when the command starts.

Closes #2480.

source-builder/sb/setbuilder.py

@@ -468,7 +468,7 @@ def run():
                     '--report-format': 'The report format (text, html, asciidoc).' }
         mailer.append_options(optargs)
         opts = options.load(sys.argv, optargs)
-        log.notice('RTEMS Source Builder - Set Builder, v%s' % (version.str()))
+        log.notice('RTEMS Source Builder - Set Builder, %s' % (version.str()))
         opts.log_info()
         if not check.host_setup(opts):
             raise error.general('host build environment is not set up correctly')