SysMD Notebook Roadmap items

[christoph-grimm]

Work in progress that will come in next releases (order is irrelevant; all is work in progress -- might be published once stable and performance is good)

1. Replace hand-written parser with ANTLR parser from reference implementation; Work in Progress.

2. Add Expression KerML classes that are compliant to standard (currently, proprietary); Work in Progress.

3. Built-in solver is based on (NL) MILP optimization problem; allow us of OJ Algo for big models (Work in Progress)

4. Add open interface to (SAT/SMT) solvers; Work in Progress.

5. Add UI based on ReactJS that uses REST API of SysMD notebook (endpoint /session already there; UI nearly finished, needs small improvements; available on request)

Comments and feedback is welcome.