(tested in simulation)

Usage:
add ' "ExrConverter": {} ' to ltm.configuration property of VisionMemory

- MemoryBase: added PNGConverter as standard for processors to use

- MemoryToIceAdapter: put stopping of recording into its own thread and detached it to solve the problem of the GUI freezing if there is still data left to store after pressing stop
- Memory: Added information to print into log when storing of all data for this memory is finished
- BufferedMemoryMixin: removed unnecessary threading/parallelization and code that did not work (bufferFinished())

provider segment and core segment information is only added to the working memory object that will be exported when the corresponding episode snapshots that are exported have this core- or provider-segment
The log prints an info statement when core- and provider segments are exported that do not have aron type information.

Problem: when storing ltm a new wm is created and the entity snapshots are added, but the aron-type information of the server::wm is lost

Fix: new method that adds core and provider segments to newly created armem::wm to which entity snapshots are added
This needs a better solution, but export of aron-type information does work like this

This commit introduces the SkillWithContextBlueprint, this allows for the creation of Skills that require a context to be connected. Also, changes were made to the SkillProviderComponentPlugin where naming of some skill factories was corrected.