Custom CollectD package

This package is based on the Joyent WIP version that can be found here:

https://github.com/joyent/pkgsrc-wip/tree/9a231b96e073a046623c25cb423fcfe9db3ae839/collectd5

This version adds in some of the options framework support to allow
bundling some core plugins with the main build.
Starting upgrade to CollectD 5.1.3