To configure and maintain mailGraph automatically

[moudsen]

[moudsen]

Feature added

• When testing mailGraph supplying eventId of zero will pick a random problem from Zabbix via API for testing mailGraph - no need anymore to specify a specific eventId.

[moudsen]

Relates to #43

[moudsen]

Relates to #36 - also maintain composer libraries (add, update, remove)

[moudsen]

Started working on ability to create and update the mailGraph mediatype and javascript (MVP) from CLI based on a pull from github:

1. Create "MailGraph" mediatype if not present yet (framework from template file) /// mediatype.get / mediatype.create
2. Update "MailGraph" script (update if template javascript is different from actual content) /// mediatype.update

Considering to perform the mediatype/script update from the main mailGraph script => script version must match mailGraph version?
Considering to create a CLI "setup" script to ask for mailGraph configuration entries and to test access to filesystem and Zabbix API.

[moudsen]

MVP working - can get, update, create mediatypes in 5.4, 6.0, 6.4, 7.0 and 7.4.
Working on PHP to initialize (from scratch) and to update (pick up from javascript directory and inject update into Zabbix).