adopt parser to latest code changes
adopt state module to recent changes
introduce equation ordering to reduce compile time
revise externalize system to separate modules
many externalisation changes and remove equation expression stacking
further expand externalising by splitting definition and implementation
make module state working again
rename settings to options for convenience
generate and parse system and kernel properties
fix kernel settings access and implement precision parsing
change parser intend symbols
add signal capabilities to system class
add recalculated signal to subsystems (and solved to system)
Merge branch 'master' of github.com:ickby/openDCM