Add check_version method to mycroft.version
Add check_version method to mycroft.version

==== Fixed Issues ====
NONE - replace with associated issue numbers, e.g. #123, #304

====  Tech Notes ====
Adds a function to check if the core version is newer than a given
version string.

linuxipho/mycroft-core,Dark5ide/mycroft-core,forslund/mycroft-core,MycroftAI/mycroft-core,linuxipho/mycroft-core,aatchison/mycroft-core,Dark5ide/mycroft-core,forslund/mycroft-core,MycroftAI/mycroft-core,aatchison/mycroft-core