Logger

Add a PSR3 compatible logging facility for processes to log back centrally to the scheduler

Cron

Adds a Cron like rule to execute actions or generate events based on a cron expression schedule, or engine startup or shutdown.
Add in logic to restart failed input processes

Remove debug text

Remove debug text from SysInfo

Improved memory limit detection

Use additional inputs of physical/vm memory and cgroups limits in calculating the amount of memory available to the scheduler.

Improved Callbacks

Add in support for onComplete(), onTimeout(), onProgress() called by fire(), makes for cleaner rules.
Also split acceptEvent into acceptInitialEvent() and acceptSubsequentEvent() to remove boilerplate for setting up and crosschecking context.

Rule Child Classes

Provide Rule child classes to cover some of the standard code required for each rule type

Shutdown Order

Improve shutdown handling when actions exit on their own before input processes have exited
BugFixes

Management Server

Implement a basic HTTP management server to view into the state of a running Scheduler

Update TimeBucket dependancies

Remove TimeBucket dependancy as it is not a hard requirement for PHP-EC

Bug Fix

Fix instances that may have the old PHP7.4+ serialisation format from v0.2.10-v0.2.12