GitLab

* port to Cxx20

* added edges and splits to msgpack overloads
* renamed space::area to space::region
* removed namespace usings from examples
* fixed concurrent focalise bug in kv_db
* kv_db do not write unchanged data to db
* kv_db/lmdb fixed map_size bug
* added persistance to gol example (disabled until memory management is replced with reference implemantation done in D)

* swap old edging concept relying on routes with a pair based concept so nodes of different types can be connected by an edge
* update json lib to v3.9.1 (for GCC 10 compat)
* oscillator gtk ui reworked to use pixbuf's for performance

* fixed raspberry pi compile problems (still warnings to investigate using gcc)
* introducing WITH_ASPECT_DEPENDENCY_TRACKING compiler flag

* updated wiki

* cleaning up common controller
* fixes proposed by community
* implemented spreads for renderer
* implemented simplex paths for renderering spreads and routes
* reworked queue visiting

* introduced some_ptr beeing a tuple
* added edge spawning to causal:facet
* renamed acts to postfixing "ing"
* added get_ptr to causal::core::ptr for getting a copy of pointer
* renaming causal::wirks::spawn to causal::wirks::render
* added 1599x899 grid templates for oscillator

* remove workerthread from queue_mt
* scaling using condition variable (removed thread slow down delays)

* finetuned oscillator example

* finetuned oscillator example

* added stacktrace to fatal and error exceptions
* changed default build to clang, better debug information
* renamed a lot of stuff
* added dependencies to boost, libbacktrace and  nlohmann/json
* added causal::facet which contains
  - spreads
  - scales
  - routes
  - combine
  - pipe
* added causal::wirks
  - observe
  - spawn
* introduced different new pointer which does not open essence
  - nil_ptr does not do anything and does not hold an essence
  - ro_ptr opens essences readonly (junctions do support, ghost behaves as in a readonly junction)
  - off_ptr just memorized pointer does not open essence
* introduced possibility for multiple pointer to open essence in the same thread
* loading graph from graphviz dot file
* fixed essence construction move/copy bug (derived classes were destroyed when using ptr<base>)
* spawn implemented and tested route-pipe-route cycle
* added boost::stacktrace using libbacktrace
* removed old oscillation examples
* reworked oscillation gtk example for use of causal::facet
* removed equlibrium example
* removed old graph