- Integrated changes to the stop mechanism
- Also re-worked the interface to have the same execOn* methods as Sensor Groups

- Decoupled the stop() and wait() methods
- A stop command is issued to all sensor groups, then a wait is performed
- Wait() now does busy waiting at a 10ms frequency and times out based
on the interval of the sensor group

Only minor improvements today
It seems that dynamic symbol address are currently not computed correctly

-detect a subset of symbols in shared library even if stripped
-fix a critical bug which lead to skipping of function symbols
-both changes increase the memory overhead drastically...

-fixes on both sides
-finish first implementation of pusher plugin
-still requires quality of life improvements

- querySensor does not return NULL pointers anymore, but always
the "buffer" input argument
- the previous implementation was more descriptive of error statuses,
but much more prone to leaking memory in case of improper usage
- Also fixed a warning in the MSR plugin

-Fixes and improvements to Caliper service
-Start work on Pusher plugin

-service stores snapshot data now in shared memory
-Caliper service finished for the moment
-Pusher plugin adaption outstanding...

- Fixed a bug in the Filesink plugin that caused occasional crashes
- Fixed a bug in the Pusher REST API that prevented plugin reloads
for operators

- Make clean might be required

-fixed symbol address calculation

- This plugin allows to write arbitrary sensor data to the local file system
- Removed the obsolete sink functionality in SensorBase
- Also fixed a minor bug concerning MQTT topic assignment in template analyzers

-implement custom symbollookup instead of Caliper service usage
-relocate lookup logic to pusher plugin
-share symbol information via shared memory

-avoids symbollookup service but instead uses dladdr
-not fully re-entrant but does not crash
-needs huge clean-up

- on sampling event record current object file + function name
- add numa-node and cpu info

- Switched internal buffers to ureading_t types to allow the SensorBase
class to perform all basic overflow and wrap-around checks
- Managing overflows explicitly in the SAR parser, as deltas need to be
calculated beforehand

- use std::atomic_flag based spin lock for thread safety
- minor fixes and improvements

Pusher: Caliper plugin preparations: introduce sensor mutex to allow for runtime addition of sensors

- An OpenCV-based regression plugin using Random Forest models
- Also added a few missing copy constructors