(CFACT-104) Add dmi resolver to solaris

This patch adds support for dmi facts (bios, manufacturer, and product) to
solaris. This is mostly for i86 since sparc does not provide any way to fetch
equivalent information.
Merge pull request #124 from vrthra/fix/cfact-104/dmi-facts-solaris

(CFACT-104) Add dmi resolver to solaris