Enable in use column via seperate script and in mon group inserting workflow

Hi @mark - enabling in use to check that this is how you had envisaged it being done? This is based off !22 (merged) so may make less sense as to what is being done here until that is merged so no rush on this.

• Adds a new script to enable 1 monitoring group and switch off any others found in existing entries
• This is done by using the script I previously added (not in master yet) which list MonGroups by SMK so some updates needed there to use an existing connection
• insertMonitoringGroups now checks if there is an existing enabled mon group already attached to the same SMK and if there is then switches it off after mon group is uploaded (in case it fails the switching off is done after).

Having done some testing I think this is now fixed and working so ready for review.